question_answer 1) From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in: [NEET 5-5-2019]
A)
Pteridophytes
done
clear
B)
Gymnosperms
done
clear
C)
Liverworts
done
clear
D)
Mosses
done
clear
View Answer play_arrow
question_answer 2) Extrusion of second polar body from egg nucleus occurs: [NEET 5-5-2019]
A)
Before entry of sperm into ovum
done
clear
B)
Simultaneously with first cleavage
done
clear
C)
After entry of sperm but before fertilization
done
clear
D)
After fertilization
done
clear
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question_answer 3) DNA precipitation out of a mixture of bimolecules can be achieved by treatment with: [NEET 5-5-2019]
A)
Methanol at room temperature
done
clear
B)
Chilled chloroform
done
clear
C)
Isopropanol
done
clear
D)
Chilled ethanol
done
clear
View Answer play_arrow
question_answer 4) Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder causing wheezing due to: [NEET 5-5-2019]
A)
Proliferation of fibrous tissues and damage of the alveolar walls
done
clear
B)
Reduction in the secretion of surfactants by pneumocytes
done
clear
C)
Benign growth on mucous lining of nasal cavity
done
clear
D)
Inflammation of bronchi and bronchioles
done
clear
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question_answer 5) The Earth summit held in Rio de Janeiro in 1992 was called: [NEET 5-5-2019]
A)
To assess threat posed to native species by invasive weed species
done
clear
B)
For immediate steps to discontinue use of CFCs that were damaging the ozone layer
done
clear
C)
To reduce \[C{{O}_{2}}\]emissions and global warming
done
clear
D)
For conservation of biodiversity and sustainable utilization of its benefits
done
clear
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question_answer 6)
Match the hominids with their correct brain size: [NEET 5-5-2019] [a] Homo habilis (i) 900 cc [b] Homo neanderthalensis (ii) 1350 cc [c] Homo erectus (iii) 650-800 cc [d] Homo sapiens (iv) 1400 cc
Select the correct option.
A)
[a] (iii) [b] (iv) [c] (i) [d] (ii)
done
clear
B)
[a] (iv) [b] (iii) [c] (i) [d] (ii)
done
clear
C)
[a] (iii) [b] (i) [c] (iv) [d] (ii)
done
clear
D)
[a] (iii) [b] (ii) [c] (i) [d] (iv)
done
clear
View Answer play_arrow
question_answer 7) How does steroid hormone influence the cellular activities? [NEET 5-5-2019]
A)
Activating cyclic AMP located on the cell membrane
done
clear
B)
Using aquaporin channels as second messenger
done
clear
C)
Changing the permeability of the cell membrane
done
clear
D)
Binding to DNA and forming a gene-hormone complex
done
clear
View Answer play_arrow
question_answer 8) Expressed Sequence Tags (ESTs) refers to: [NEET 5-5-2019]
A)
DNA polymorphism
done
clear
B)
Novel DNA sequences
done
clear
C)
Genes expressed as RNA
done
clear
D)
Polypeptide expression
done
clear
View Answer play_arrow
question_answer 9) It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield? [NEET 5-5-2019]
A)
Gibberellin and Abscicic acid
done
clear
B)
Cytokinin and Abscisic acid
done
clear
C)
Auxin and Ethylene
done
clear
D)
Gibberellin and Cytokinin
done
clear
View Answer play_arrow
question_answer 10) Which of the following ecological pyramids is generally inverted? [NEET 5-5-2019]
A)
Pyramid of biomass in a forest
done
clear
B)
Pyramid of biomass in a sea
done
clear
C)
Pyramid of numbers in grassland
done
clear
D)
Pyramid of energy
done
clear
View Answer play_arrow
question_answer 11) Which of the following pair of organelles does not contains DNA?
A)
Lysosomes and Vacuoles
done
clear
B)
Nuclear envelope and Mitochondria
done
clear
C)
Mitochodria and Lysosomes
done
clear
D)
Chloroplast and Vacuoles
done
clear
View Answer play_arrow
question_answer 12) Select the correct sequence for transport of sperm cells in male reproductive system:
A)
Seminiferous tubules\[\to \]Vasa efferentia\[\to \] Epididymis \[\to \] Inguinal canal \[\to \] Urethra
done
clear
B)
Testis \[\to \] Epididymis \[\to \] Vasa efferentia \[\to \] Vas deferens \[\to \] Ejaculatory duct \[\to \] Inguinal canal \[\to \]Urethra
done
clear
C)
\[\to \] Urethral meatus Testis \[\to \] Epididymis \[\to \] Vasa efferentia \[\to \] Rate testis \[\to \]Inguinal canal \[\to \] Urethra
done
clear
D)
Seminiferous tubules\[\to \]Rete testis\[\to \]Vasa efferentia\[\to \]Epididymis\[\to \]Vas deferens \[\to \] Ejaculatory duct \[\to \] Urethra \[\to \] Urethral meatus
done
clear
View Answer play_arrow
question_answer 13)
Match the following hormones with the respective disease: [a] Insulin (i) Addison?s disease [b] Thyroxin (ii) Diabetes insipidus [c] Corticoids (iii) Acromegaly [d] Growth Hormones (iv) Goitre (v) Diabetes mellitus
Select the correct option.
A)
[a] (v) [b] (iv) [c] (i) [d] (iii)
done
clear
B)
[a] (ii) [b] (iv) [c] (i) [d] (iii)
done
clear
C)
[a] (v) [b] (i) [c] (ii) [d] (iii)
done
clear
D)
[a] (ii) [b] (iv) [c] (iii) [d] (i)
done
clear
View Answer play_arrow
question_answer 14) Persistent nucellus in the seed is known as- [NEET 5-5-2019]
A)
Hilum
done
clear
B)
Tegmen
done
clear
C)
Chalaza
done
clear
D)
Perisperm
done
clear
View Answer play_arrow
question_answer 15) Pinus seed cannot germinate and establish without fungal association. This is because: [NEET 5-5-2019]
A)
It has very hard seed coat
done
clear
B)
Its seed contain inhibitors that prevent germination
done
clear
C)
Its embryo is immature
done
clear
D)
It has obligate association with mycorrhizae
done
clear
View Answer play_arrow
question_answer 16) Cells in \[{{G}_{0}}\] phase: [NEET 5-5-2019]
A)
Suspend the cell cycle
done
clear
B)
Terminate the cell cycle
done
clear
C)
Exit the cell cycle
done
clear
D)
Enter the cell cycle
done
clear
View Answer play_arrow
question_answer 17)
Match the following structures with their respective location in organs: [NEET 5-5-2019] [a] Crypts of Lieberkuhn (i) Pancreas [b] Glisson?s capsule (ii) Duodenum [c] Islets of Langerhans (iii) Small intestine [d] Brunner?s Glands (iv) Liver
Select the correct option.
A)
[a] (iii) [b] (iv) [c] (i) [d] (ii)
done
clear
B)
[a] (iii) [b] (ii) [c] (i) [d] (iv)
done
clear
C)
[a] (iii) [b] (i) [c] (ii) [d] (iv)
done
clear
D)
[a] (ii) [b] (iv) [c] (i) [d] (iii)
done
clear
View Answer play_arrow
question_answer 18) Grass leaves curl inward during very dry weather. Select the most appropriate reason from the following: [NEET 5-5-2019]
A)
Shrinkage of air spaces in spongy mesophyll
done
clear
B)
Tyloses in vessels
done
clear
C)
Closure of stomata
done
clear
D)
Flaccidity of bulliform cells
done
clear
View Answer play_arrow
question_answer 19)
Consider the following statements: [NEET 5-5-2019] [A] Coenzyme of metal ion that is tightly bound to enzyme protein is called prosthetic group. [B] A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme
Select the correct option.
A)
Both [A] and [B] are false
done
clear
B)
[A] is false but [B] is true
done
clear
C)
Both [A] and [B] are true
done
clear
D)
[A] is true but [B] is false
done
clear
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question_answer 20) Respiratory Quotient (RQ) value of tripalmitin is: [NEET 5-5-2019]
A)
0.07
done
clear
B)
0.09
done
clear
C)
0.9
done
clear
D)
0.7
done
clear
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question_answer 21) Which of the following statements is incorrect? [NEET 5-5-2019]
A)
Infective constituent in viruses is the protein coat
done
clear
B)
Prions consist of abnormally folded proteins
done
clear
C)
Viroids lack a protein coat
done
clear
D)
Viruses are obligate parasites
done
clear
View Answer play_arrow
question_answer 22) Phloem in gymnosperms lacks: [NEET 5-5-2019]
A)
Companion cells only
done
clear
B)
Both sieve tubes and companion cells
done
clear
C)
Albuminous cells and sieve cells
done
clear
D)
Sieve tubes only
done
clear
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question_answer 23)
Under which of the following conditions will there be no change in the reading frame of following mRNA? [NEET 5-5-2019]
A)
Insertion of A and G at 4th and 5th positions respectively
done
clear
B)
Deletion of GGU from 7th, 8th and 9th positions
done
clear
C)
Insertion of G at 5th positions
done
clear
D)
Deletion of G from 5th positions
done
clear
View Answer play_arrow
question_answer 24) Identify the cells whose secretion protects the lining of gastro-intestinal tract from various enzymes. [NEET 5-5-2019]
A)
Oxyntic Cells
done
clear
B)
Duodenal Cells
done
clear
C)
Chief Cells
done
clear
D)
Goblet Cells
done
clear
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question_answer 25) What is the site of perception of photoperiod necessary for induction of flowering in plants? [NEET 5-5-2019]
A)
Shoot apex
done
clear
B)
Leaves
done
clear
C)
Lateral buds
done
clear
D)
Pulvinus
done
clear
View Answer play_arrow
question_answer 26) What would be the heart rate of a person if the cardiac output is 5L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL? [NEET 5-5-2019]
A)
100 beats per minute
done
clear
B)
125 beats per minute
done
clear
C)
50 beats per minute
done
clear
D)
75 beats per minute
done
clear
View Answer play_arrow
question_answer 27) Tidal Volume and Expiratory Reserve Volume of an athlete is 500 mL and 1000 mL respectively. What will be his Expiratory Capacity if the Residual Volume is 1200 mL? [NEET 5-5-2019]
A)
2200 mL
done
clear
B)
2700 mL
done
clear
C)
1500 mL
done
clear
D)
1700 mL
done
clear
View Answer play_arrow
question_answer 28) Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is: [NEET 5-5-2019]
A)
Parietal
done
clear
B)
Free central
done
clear
C)
Basal
done
clear
D)
Axile
done
clear
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question_answer 29) Which of these following methods is the most suitable for disposal of nuclear waste? [NEET 5-5-2019]
A)
Dump the waste within rocks under Deep Ocean
done
clear
B)
Bury the waste within rocks deep below the Earth?s surface
done
clear
C)
Shoot the waste into space
done
clear
D)
Bury the waste under Antarctic ice-cover
done
clear
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question_answer 30) Which of the following statement is incorrect? [NEET 5-5-2019]
A)
Conidia are produced exogenously and ascospores endogenously.
done
clear
B)
Yeasts have filamentous bodies with long thread-like hyphae.
done
clear
C)
Morels and truffles are edible delicacies.
done
clear
D)
Clauiceps is a source of many alkaloids and LSD.
done
clear
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question_answer 31) Which one of the following equipments is essentially required for growing microbes on a large scale, for industrial production of enzymes? [NEET 5-5-2019]
A)
Industrial oven
done
clear
B)
Bioreactor
done
clear
C)
BOD incubator
done
clear
D)
Sludge digester
done
clear
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question_answer 32)
Match the following organisms with the products they produce: [NEET 5-5-2019] [a] Lactobacillus (i) Cheese [b] Saccharomyces cerevisiae (ii) Curd [c] Aspergillus niger (iii) Citric Acid [d] Acetobacter aceti (iv) Bread (v) Acetic Acid
Select the correct option
A)
[a] (iii) [b] (iv) [c] (v) [d] (i)
done
clear
B)
[a] (ii) [b] (i) [c] (iii) [d] (v)
done
clear
C)
[a] (ii) [b] (iv) [c] (v) [d] (iii)
done
clear
D)
[a] (ii) [b] (iv) [c] (iii) [d] (v)
done
clear
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question_answer 33) Select the incorrect statement. [NEET 5-5-2019]
A)
Inbreeding selects harmful recessive genes that reduce fertility and productivity.
done
clear
B)
Inbreeding helps in accumulation of superior genes and elimination of undesirable genes.
done
clear
C)
Inbreeding increases homozygosity.
done
clear
D)
Inbreeding is essential to evolve purelines in any animal.
done
clear
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question_answer 34) Which h of the following immune responses is responsible for rejection of kidney graft? [NEET 5-5-2019]
A)
Inflammatory immune response
done
clear
B)
Cell-mediated immune response
done
clear
C)
Auto-immune response
done
clear
D)
Humoral immune response
done
clear
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question_answer 35) Which of the statements given below is not true about formation of Annual Rings in trees? [NEET 5-5-2019]
A)
Activity of cambium depends upon variation in climate.
done
clear
B)
Annula ring are not prominent in trees of temperate region.
done
clear
C)
Annula ring is a combination of spring wood and autumn wood produced in a year.
done
clear
D)
Differential activity of cambium causes light and dark bands of tissue-early and late wood respectively
done
clear
View Answer play_arrow
question_answer 36) Which of the following is true for Golden rice? [NEET 5-5-2019]
A)
It is drought tolerant, developed using Agrobacterium vector.
done
clear
B)
It has yellow grains, because of a gene introduced from a primitive variety of rice.
done
clear
C)
It is Vitamin A enriched, with a gene from daffodil.
done
clear
D)
It is pest resistant, with a gene from Bacillus thuringiensis.
done
clear
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question_answer 37) What is the genetic disorder in which an individual has an overall masculine development, gynaecomastia, and is sterile? [NEET 5-5-2019]
A)
Edward syndrome
done
clear
B)
Down's syndrome
done
clear
C)
Turner's syndrome
done
clear
D)
Klinefelter's syndrome
done
clear
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question_answer 38) Which one of the following statements regarding post-fertilization development in flowering plants is incorrect? [NEET 5-5-2019]
A)
Central cell develop into endosperm
done
clear
B)
Ovules develop into embryo sac
done
clear
C)
Ovary develops into fruit
done
clear
D)
Zygote develops into embryo
done
clear
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question_answer 39) Which of the following is the most important cause for animals and plants being driven to extinction? [NEET 5-5-2019]
A)
Economic exploitation
done
clear
B)
Alien species invasion
done
clear
C)
Habitat loss and fragmentation
done
clear
D)
Drought and floods
done
clear
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question_answer 40) Which of the following contraceptive methods do involve a role of hormone? [NEET 5-5-2019]
A)
CuT, Pills, Emergency contraceptives
done
clear
B)
Pills, Emergency contraceptives, Barrier methods
done
clear
C)
Lactational amenorrhea, Pills, Emergency contraceptives
done
clear
D)
Barrier method, Lactational amenorrhea, Pills
done
clear
View Answer play_arrow
question_answer 41)
Consider following features: [NEET 5-5-2019] [a] Organ system level of organisation [b] Bilateral symmetry [c] True coelomates with segmentation of body
Select the correct option of animal groups which possess all the above characteristics.
A)
Arthropoda, Mollusca and chordata
done
clear
B)
Annelida, Mollusca and chordate
done
clear
C)
Annelida, Arthropoda and chordate
done
clear
D)
Annelida, Arthropoda and Mollusca
done
clear
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question_answer 42) Which of the following factors is responsible for the formation of concentrated urine? [NEET 5-5-2019]
A)
Secretion of erythropoietin by Juxtaglomerular complex.
done
clear
B)
Hydrostatic pressure during glomerular filtration.
done
clear
C)
Low levels of antidiuretic hormone.
done
clear
D)
Maintaining hyperosmolarity towards inner medullary interstitum in the kidneys
done
clear
View Answer play_arrow
question_answer 43)
Match the following organisms with their respective characteristics: [NEET 5-5-2019] [a] Pila (i) Flame cells [b] Bombyx (ii) Comb plates [c] Pleurobrachia (iii) Radula [d] Taenia (iv) Malpighian Tubules
A)
[a] (i) [b] (iv) [c] (iii) [d] (i)
done
clear
B)
[a] (iii) [b] (ii) [c] (iv) [d] (i)
done
clear
C)
[a] (iii) [b] (ii) [c] (i) [d] (iv)
done
clear
D)
[a] (iii) [b] (iv) [c] (i) [d] (i)
done
clear
View Answer play_arrow
question_answer 44) Xylem translocates: [NEET 5-5-2019]
A)
Water, mineral salts and some organic nitrogen only
done
clear
B)
Water, mineral salts, some organic nitrogen and hormones
done
clear
C)
Water only
done
clear
D)
Water and mineral salts only
done
clear
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question_answer 45) What is the direction of movement of sugars in phloem? [NEET 5-5-2019]
A)
Downward
done
clear
B)
Bi-directional
done
clear
C)
Non-multidirectional
done
clear
D)
Upward
done
clear
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question_answer 46) The correct sequence of phases of cell cycle is: [NEET 5-5-2019]
A)
\[S\to {{G}_{1}}\to {{G}_{2}}\to M\]
done
clear
B)
\[{{G}_{1}}\to S\to {{G}_{2}}\to M\]
done
clear
C)
\[M\to {{G}_{1}}\to {{G}_{2}}\to S\]
done
clear
D)
\[{{G}_{1}}\to {{G}_{2}}\to S\to M\]
done
clear
View Answer play_arrow
question_answer 47) The shorter and longer arms of a submetacentric chromosome are referred to as: [NEET 5-5-2019]
A)
q-arm and p-arm respectively
done
clear
B)
m-arm and n-arm respectively
done
clear
C)
s-arm and l-arm respectively
done
clear
D)
p-arm and q-arm respectively
done
clear
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question_answer 48) Which of the following can be used as a biocontrol agent in the treatment of plant disease? [NEET 5-5-2019]
A)
Anabaena
done
clear
B)
Lactobacillus
done
clear
C)
Trichoderma
done
clear
D)
Chlorella
done
clear
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question_answer 49) Which of the following glucose transporters is insulin-dependent? [NEET 5-5-2019]
A)
GLUT III
done
clear
B)
GLUT IV
done
clear
C)
GLUT I
done
clear
D)
GLUT II
done
clear
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question_answer 50) Purines found both in DNA and RNA are: [NEET 5-5-2019]
A)
Guanine and cytosine
done
clear
B)
Cytosine and thymine
done
clear
C)
Adenine and thymine
done
clear
D)
Adenine and guanine
done
clear
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question_answer 51) Drug called 'Heroin' is synthesized by: [NEET 5-5-2019]
A)
Glycosylation of morphine
done
clear
B)
Nitration of morphine
done
clear
C)
Methylation of morphine
done
clear
D)
Acetylation of morphine
done
clear
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question_answer 52) Select the correct option. [NEET 5-5-2019]
A)
Each rib is a flat thin bone and all the ribs are connected dorsally to the thoracic vertebrae and ventrally to the sternum
done
clear
B)
There are seven pairs of vertebrosternal, three pairs of vertebrochondral and two pairs of vertebral ribs
done
clear
C)
8th, 9th and 10th pairs of ribs articulate directly with the sternum
done
clear
D)
11th and 12th pairs of ribs are connected to the sternum with the help of hyaline cartilage.
done
clear
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question_answer 53) A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population? [NEET 5-5-2019]
A)
0.16(AA); 0.48 (Aa); 0.36 (aa)
done
clear
B)
0.16 (AA); 0.36(Aa); 0.48 (aa)
done
clear
C)
0.36 (AA); 0.48 (Aa); 0.16 (aa)
done
clear
D)
0.16 (AA); 0.24 (Aa); 0.36 (aa)
done
clear
View Answer play_arrow
question_answer 54) Which of the following statements regarding mitochondria is incorrect? [NEET 5-5-2019]
A)
Inner membrane is convoluted with infoldings
done
clear
B)
Mitochondrial matrix contains single circular DNA molecule and ribosomes
done
clear
C)
Outer membrane is permeable to monomers of carbohydrates, fats and proteins
done
clear
D)
Enzymes of electron transport are embedded in outer membrane.
done
clear
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question_answer 55) Variations caused by mutation, as proposed by Hugo de Vries, are: [NEET 5-5-2019]
A)
Small and directional
done
clear
B)
Small and directionless
done
clear
C)
Random and directional
done
clear
D)
Random and directionless
done
clear
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question_answer 56) Following statements describe the characteristics of the enzyme Restriction Endonuclease. Identify the incorrect statement. [NEET 5-5-2019]
A)
The enzyme cuts the sugar-phosphate backbone at specific sites on each strand
done
clear
B)
The enzyme recognizes a specific palindromic nucleotide sequence in the DNA
done
clear
C)
The enzyme cuts DNA molecule at identified position within the DNA
done
clear
D)
The enzyme binds DNA at specific sites and cuts only one of the two strands
done
clear
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question_answer 57) Which part of the brain is responsible for thermoregulation? [NEET 5-5-2019]
A)
Corpus callosum
done
clear
B)
Medulla oblongata
done
clear
C)
Cerebrum
done
clear
D)
Hypothalamus
done
clear
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question_answer 58)
Use of an artificial kindney during hemodialysis may result in: [NEET 5-5-2019] (i) Nitrogenous waste build-up in the body (ii) Non -elimination of excess potassium ions (iii) Reduced absorption of calcium ions from gastro-intestinal tract (iv) Reduced RBC production
Which of the following options is the most appropriate?
A)
(iii) and (iv) are correct
done
clear
B)
(i) and (iv) are correct
done
clear
C)
(i) and (ii) are correct
done
clear
D)
(ii) and (iii) are correct
done
clear
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question_answer 59) What triggers activation of protoxin to active Bt toxin of Bacillus thuringiensis in boll worm? [NEET 5-5-2019]
A)
Alkaline pH of gut
done
clear
B)
Acidic pH of stomach
done
clear
C)
Body temperature
done
clear
D)
Moist surface of midgut
done
clear
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question_answer 60) Which of the following protocols did aim for reducing emission of chlorofluorocarbons into the atmosphere? [NEET 5-5-2019]
A)
Gothenburg Protocol
done
clear
B)
Geneva Protocol
done
clear
C)
Montreal Protocol
done
clear
D)
Kyoto Protocol
done
clear
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question_answer 61) Which of the following sexually transmitted diseases is not completely curable? [NEET 5-5-2019]
A)
Genital herpes
done
clear
B)
Chlamydiasis
done
clear
C)
Gonorrhoea
done
clear
D)
Genital warts
done
clear
View Answer play_arrow
question_answer 62) Thiobacillus is a group of bacteria helpful in carrying out: [NEET 5-5-2019]
A)
Nitrification
done
clear
B)
Denitrification
done
clear
C)
Nitrogen fixation
done
clear
D)
Chemoautotrophic fixation
done
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View Answer play_arrow
question_answer 63) In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in \[{{F}_{1}}\]generation, pink flowers were obtained. When pink flowers were selfed, the\[{{F}_{2}}\] generation showed white, red and pink flowers. Choose the incorrect statement from the following: [NEET 5-5-2019]
A)
Ratio of \[{{F}_{2}}\]is \[\frac{1}{4}(Red):\frac{2}{4}(Pink):\frac{1}{4}(White)\]
done
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B)
Law of Segregation does not apply in this experiment
done
clear
C)
This experiment does not follow the Principle of Dominance
done
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D)
Pink colour in is due \[{{F}_{1}}\]to incomplete dominance
done
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question_answer 64) In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5kg die. [NEET 5-5-2019] Which type of selection process is taking place?
A)
Disruptive Selection
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B)
Cyclical Selection
done
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C)
Directional Selection
done
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D)
Stabilizing Selection
done
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question_answer 65) Concanavalin A is: [NEET 5-5-2019]
A)
A lectin
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B)
a pigment
done
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C)
An alkaloid
done
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D)
an essential oil
done
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question_answer 66)
Match the Column-I with Column-II : [NEET 5-5-2019] Column -I Column -II [a] P-wave (i) Depolarisation of ventricles [b] QRS Complex (ii) Repolarisation of ventricles [c] T-wave (iii) Coronary ischemia [d] Reduction in the size of T-wave (iv) Depolarisation of atria (v) Repolarisation of atria
Select the correct option.
A)
[a] (iI) [b] (i) [c] (v) [d] (iii)
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B)
[a] (ii) [b] (iii) [c] (v) [d] (iv)
done
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C)
[a] (iv) [b] (i) [c] (ii) [d] (iii)
done
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D)
[a] (iv) [b] (i) [c] (ii) [d] (v)
done
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question_answer 67)
Match the following genes of the Lac operon with their respective produces: [NEET 5-5-2019] [a] i gene (i) \[\beta \]-galactosidase [b] z gene (ii) Permease [c] a gene (iii) Repressor [d] y gene (iv) Transacetylase
Select the correct option.
A)
[a] (iii) [b] (i) [c] (iv) [d] (ii)
done
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B)
[a] (iii) [b] (iv) [c] (i) [d] (ii)
done
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C)
[a] (i) [b] (iii) [c] (ii) [d] (iv)
done
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D)
[a] (iii) [b] (i) [c] (ii) [d] (iv)
done
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question_answer 68) Which of the following statements is not correct? [NEET 5-5-2019]
A)
Lysosomes are membrane bound structures.
done
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B)
Lysosomes are formed by the process of packaging in the endoplasmic reticulum.
done
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C)
Lysosomes have numerous hydrolytic enzymes.
done
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D)
The hydrolytic enzymes of lysosomes are active under acidic pH.
done
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question_answer 69) In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as: [NEET 5-5-2019]
A)
Syngamy
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B)
Parthenogenesis
done
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C)
Autogamy
done
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D)
Parthenocarpy
done
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question_answer 70)
Match Column-I with Column -II. [NEET 5-5-2019] Column-I Column-I [a] Saprophyte (i) Symbiotic association or fungi with plant roots [b] Parasite (ii) Decomposition of dead organic materials [c] Lichens (iii)Living on living plants of animals [d] Mycorrhiza (iv) Symbiotic association of algae and fungi
Choose the correct answer from the options given below:
A)
[a] (ii) [b] (i) [c] (iii) [d] (iv)
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B)
[a] (ii) [b] (iii) [c] (iv) [d] (i)
done
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C)
[a] (i) [b] (ii) [c] (iii) [d] (iv)
done
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D)
[a] (iii) [b] (ii) [c] (i) [d] (iv)
done
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question_answer 71) Which of the following is a commercial blood cholesterol lowering agent? [NEET 5-5-2019]
A)
Streptokinase
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B)
Lipases
done
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C)
Cyclosporin A
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D)
Statin
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question_answer 72) Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology? [NEET 5-5-2019]
A)
Genetic code is nearly universal
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B)
Genetic code is specific
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C)
Genetic code is not ambiguous
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D)
Genetic code is redundant
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question_answer 73) The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in: [NEET 5-5-2019]
A)
Eustachian tube and Salivary duct
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B)
Bronchioles and Fallopian tubes
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C)
Bile duct and Bronchioles
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D)
Fallopian tubes and Pancreatic duct
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question_answer 74) Conversion of glucose to glucose-6phosphate, the first irreversible reaction of glycolysis, is catalyzed by- [NEET 5-5-2019]
A)
Enolase
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B)
Phosphofructokinase
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C)
Aldolase
done
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D)
Hexokinase
done
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question_answer 75) Which one of the following is not a method of in situ conservation of biodiversity? [NEET 5-5-2019]
A)
Botanical Garden
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B)
Sacred Grove
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C)
Biosphere Reserve
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D)
Wildife Sanctuary
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question_answer 76) The concept of ''Omnis cellula-e cellula'' regarding cell division was first proposed by: [NEET 5-5-2019]
A)
Schleiden
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B)
Aristotle
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C)
Rudolf Virchow
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D)
Theodore Schwann
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question_answer 77) Select the correct group of biocontrol agents [NEET 5-5-2019]
A)
Oscillatoria, Rhizobium, Trichoderma
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B)
Nostoc, Azospirillium, Nucleopolyhedrovirus
done
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C)
Bacillus thuringiensis, Tobacco mosaic virus, Aphids
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D)
Trichoderma, Baculovirus, Bacillus thuringiensis
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question_answer 78) Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for typhoid. [NEET 5-5-2019]
A)
Salmonella typhi/ Anthorone test
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B)
Salmonella typhi/ Widal test
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C)
Plasmodium vivax/ UTI test
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D)
Streptococcus pneumoniae/ Widal test
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question_answer 79) Select the incorrect statement. [NEET 5-5-2019]
A)
In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.
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B)
Human males have one of their sex-chromosome much shorter than the other.
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C)
Male fruit fly is heterogametic
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D)
In male grasshoppers, 50% of sperms have no sex-chromosome.
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question_answer 80) Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth: [NEET 5-5-2019]
A)
Pharynx \[\to \] Oesophagus \[\to \] Gizzard \[\to \] Ileum \[\to \]Crop \[\to \]Colon \[\to \] Rectum
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B)
Pharynx \[\to \]Oesophagus\[\to \] Ileum \[\to \] Crop \[\to \]Gizzard \[\to \] Colon \[\to \] Rectum
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C)
Pharynx \[\to \] Oesophagus \[\to \]Crop \[\to \]Gizzard \[\to \]Ileum \[\to \] Colon \[\to \]Rectum
done
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D)
Pharynx \[\to \]Oesophagus \[\to \]Gizzard \[\to \]Crop \[\to \]Ileum \[\to \]Colon \[\to \]Rectum
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question_answer 81) Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the newborn infants because it contains: [NEET 5-5-2019]
A)
Macrophages
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B)
Immunoglobulin A
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C)
Natural killer cells
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D)
Monocytes
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question_answer 82) What is the fate of the male gametes discharged in the synergid? [NEET 5-5-2019]
A)
One fuses with the egg, other (s) fuse (s) with synergid nucleus.
done
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B)
One fuses with the egg and other fuses with central cell nuclei.
done
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C)
One fuses with the egg, other (s) degenerate (s) in the synergid.
done
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D)
All fuse with the egg.
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question_answer 83) What map unit (Centimorgan) is adopted in the construction of genetic maps? [NEET 5-5-2019]
A)
A unit of distance between genes on chromosomes, representing 1% cross over.
done
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B)
A unit of distance between genes on chromosomes, representing 50% cross over.
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C)
A unit of distance between two expressed genes, representing 10% cross over.
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D)
A unit of distance between two expressed genes, representing 100% cross over.
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question_answer 84) Select the horomone-releasing Intra-Uterine Devices. [NEET 5-5-2019]
A)
Progestasert, LNG-20
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B)
Lippes Loop, Multiload 375
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C)
Vaults, LNG-20
done
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D)
Multiload 375, Progestasert
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question_answer 85) Select the correctly written scientific name of Mango which was first described by Carolus Linnaeus. [NEET 5-5-2019]
A)
Mangifera indica
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B)
Mangifera Indica
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C)
Mangifera indica Car. Linn.
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D)
Mangifera Indica Linn
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question_answer 86) Which of the following pairs of gases is mainly responsible for greenhouse effect? [NEET 5-5-2019]
A)
Nitrogen and Sulphur dioxide
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B)
Carbon dioxide and Methane
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C)
Ozone and Ammonia
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D)
Oxygen and Nitrogen
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question_answer 87) The frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes was explained by: [NEET 5-5-2019]
A)
Alfred Sturtevant
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B)
Sutton Boveri
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C)
T.H. Morgan
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D)
Gregor J. Mendel
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question_answer 88) Which of the following statements in correct? [NEET 5-5-2019]
A)
Cornea is convex, transparent layer which is highly vascularized
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B)
Cornea consists of dense matrix of collagen and is the most sensitive portion of the eye.
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C)
Cornea is an external, Transparent and protective proteinacious covering of the eye-ball
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D)
Cornea consists of dense connective tissue of elastin and can repair itself.
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question_answer 89) Which of the following muscular disorders is inherited? [NEET 5-5-2019]
A)
Myasthenia gravis
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B)
Botulism
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C)
Tetany
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D)
Muscular dystrophy
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question_answer 90) Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for: [NEET 5-5-2019]
A)
Construction of roads
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B)
Making tubes and pipes
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C)
Making plastic sacks
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D)
use as a fertilizer
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question_answer 91) Average velocity of a particle executing SHM in one complete vibration is: [NEET 5-5-2019]
A)
\[\frac{A{{\omega }^{2}}}{2}\]
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B)
Zero
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C)
\[\frac{A\omega }{2}\]
done
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D)
\[A\omega \]
done
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question_answer 92) Two similar thin equi-convex lenses, of focal length f each, are kept coaxially in contact with each other such that the focal length of the combination is \[{{F}_{1}}\]. When the space between the two lenses is filled with glycerin (which has the same refractive index \[(\mu =1.5)\] as that of glass) then the equivalent focal length is \[{{F}_{2}}\]. The ratio \[{{F}_{2}}\] : \[{{F}_{1}}\]will be: [NEET 5-5-2019]
A)
2 : 3
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B)
3 : 4
done
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C)
2 : 1
done
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D)
1 : 2
done
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question_answer 93)
A particle moving with velocity \[\overrightarrow{V}\] is acted by three forces shown by the vector triangle PQR. The velocity of the particle will: [NEET 5-5-2019]
A)
Remain constant
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B)
Change according to the smallest force \[\overrightarrow{QR}\]
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C)
Increase
done
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D)
Decrease
done
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question_answer 94) Ionized hydrogen atoms and \[\alpha \]-particles with same momenta enters perpendicular to a constant magnetic field, B. The ratio of their radii of their paths \[{{r}_{H}}:{{r}_{\alpha }}\]will be: [NEET 5-5-2019]
A)
4 : 1
done
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B)
1 : 4
done
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C)
2 : 1
done
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D)
1 : 2
done
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question_answer 95) Body A of mass 4m moving with speed u collides with another body B of mass 2m, at rest. The collision is head on and elastic in nature. After the collision the fraction of energy lost by the colliding body A is: [NEET 5-5-2019]
A)
\[\frac{4}{9}\]
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B)
\[\frac{5}{9}\]
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C)
\[\frac{1}{9}\]
done
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D)
\[\frac{8}{9}\]
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question_answer 96) The speed of a swimmer in still water is 20 m/s. The speed of river water is 10 m/s and is flowing due east. If he is standing on the south bank and wishes to cross the river along the shortest path, the angle at which he should make his strokes w.r.t. north is given by: [NEET 5-5-2019]
A)
\[60{}^\circ \] west
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B)
\[45{}^\circ \] west
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C)
\[30{}^\circ \] west
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D)
\[0{}^\circ \]
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question_answer 97)
In the circuits shown below, the readings of the voltmeters and the ammeters will be: [NEET 5-5-2019]
A)
\[{{V}_{1}}={{V}_{2}}\text{ }and\text{ }{{i}_{1}}={{i}_{2}}\]
done
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B)
\[{{V}_{2}}>{{V}_{1}}\text{ }and\text{ }{{i}_{1}}>{{i}_{2}}\]
done
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C)
\[{{V}_{2}}>{{V}_{1}}\text{ }and\text{ }{{i}_{1}}={{i}_{2}}\]
done
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D)
\[{{V}_{1}}={{V}_{2}}\text{ }and\text{ }{{i}_{1}}>{{i}_{2}}\]
done
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question_answer 98) A 800 turn coil of effective area \[0.05\text{ }{{m}^{2}}\]is kept perpendicular to a magnetic field\[5\times {{10}^{5}}T\]. When the plane of the coil is rotated by 90º around any of its coplanar axis in 0.1 s, the emf induced in the coil will be: [NEET 5-5-2019]
A)
\[2\times {{10}^{3}}\text{ }V\]
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B)
0.02 V
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C)
2 V
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D)
0.2 V
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question_answer 99) At a point A on the earth?s surface the angle of dip,\[\delta =+25{}^\text{o}\]. At a point B on the earth?s surface the angle of dip,\[\delta =25{}^\text{o}\]. We can interpret that: [NEET 5-5-2019]
A)
A is located in the northern hemisphere and B is located in the southern hemisphere
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B)
A and B are both located in the southern hemisphere
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C)
A and B are both located in the northern hemisphere
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D)
A is located in the southern hemisphere and B is located in the northern hemisphere
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question_answer 100) An electron is accelerated through a potential difference of 10,000 V. Its de Broglie wavelength is, (nearly): [NEET 5-5-2019] \[({{m}_{e}}=9\times {{10}^{31}}kg)\]
A)
\[12.2\times {{10}^{14}}m\]
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B)
12.2 nm
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C)
\[12.2\times {{10}^{13}}m\]
done
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D)
\[12.2\times {{10}^{12}}m\]
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question_answer 101) The displacement of a particle executing simple harmonic motion is given by\[y={{A}_{0}}+A\,sin\omega t+B\,cos\omega t\]. Then the amplitude of its oscillation is given by: [NEET 5-5-2019]
A)
\[\sqrt{A_{0}^{2}+{{(A+B)}^{2}}}\]
done
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B)
A+B
done
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C)
\[{{A}_{0}}=\sqrt{{{A}^{2}}+{{B}^{2}}}\]
done
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D)
\[\sqrt{{{A}^{2}}+{{B}^{2}}}\]
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question_answer 102) \[\alpha \]-particle consists of: [NEET 5-5-2019]
A)
2 electrons and 4 protons only
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B)
2 protons only
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C)
2 protons and 2 neutrons only
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D)
2 electrons, 2 protons and 2 neutrons
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question_answer 103) A hollow metal sphere of radius R is uniformly charged. The electric field due to the sphere at a distance r from the centre: [NEET 5-5-2019]
A)
Zero as r increases for r < R, increases as r increases for r > R
done
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B)
Decreases as r increases for r < R and for r > R
done
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C)
Increases as r increases for r < R and for r > R
done
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D)
Zero as r increases for r < R, decreases as r increases for r > R
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question_answer 104) In an experiment, the percentage of error occurred in the measurement of physical quantities A, B, C and D are 1%, 2%, 3% and 4% respectively. Then the maximum percentage of error in the measurement X, where\[X=\frac{{{A}^{2}}{{B}^{1/2}}}{{{C}^{1/2}}{{D}^{3}}}\] will be- [NEET 5-5-2019]
A)
-10%
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B)
10%
done
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C)
\[\left( \frac{3}{13} \right)%\]
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D)
16%
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question_answer 105) A force \[F=20+10y\]acts on a particle in y-direction where F is in newton and y in meter. Work done by this force to move the particle from \[y=0\text{ }to\text{ }y=1\]m is: [NEET 5-5-2019]
A)
25 J
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B)
20 J
done
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C)
30 J
done
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D)
5 J
done
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question_answer 106) In which of the following processes, heat is neither absorbed nor released by a system? [NEET 5-5-2019]
A)
Isobaric
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B)
isochoric
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C)
Isothermal
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D)
adiabatic
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question_answer 107) In which of the following devices, the eddy current effect is not used? [NEET 5-5-2019]
A)
Electromagnet
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B)
Electric heater
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C)
Induction furnace
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D)
Magnetic braking in train
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question_answer 108) The unit of thermal conductivity is: [NEET 5-5-2019]
A)
\[W\text{ }m\text{ }{{K}^{1}}\]
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B)
\[~W\text{ }{{m}^{1}}\text{ }{{K}^{1}}\]
done
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C)
\[J\text{ }m\text{ }{{K}^{b\text{ }1}}\]
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D)
\[J\text{ }{{m}^{1}}\text{ }{{K}^{1}}\]
done
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question_answer 109) A body weighs 200 N on the surface of the earth. How much will it weigh half way down to the centre of the earth? [NEET 5-5-2019]
A)
250 N
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B)
100 N
done
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C)
150 N
done
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D)
200 N
done
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question_answer 110) Two parallel infinite line charges with linear charge densities +λ C/m and -λ C/m are placed at a distance of 2R in free space. What is the electric field mid-way between the two line charges? [NEET 5-5-2019]
A)
\[\frac{\lambda }{\pi {{\in }_{0}}R}N/C\]
done
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B)
\[\frac{\lambda }{2\pi {{\in }_{0}}R}N/C\]
done
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C)
Zero
done
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D)
\[\frac{2\lambda }{\pi {{\in }_{0}}R}N/C\]
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question_answer 111) A mass m is attached to a thin wire and whirled in a vertical circle. The wire is most likely to break when: [NEET 5-5-2019]
A)
The mass is at the lowest point
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B)
Inclined at an angle of \[60{}^\circ \] from vertical
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C)
The mass is at the highest point
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D)
The wire is horizontal
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question_answer 112)
The correct Boolean operation represented by the circuit diagram drawn is: [NEET 5-5-2019]
A)
NAND
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B)
NOR
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C)
AND
done
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D)
OR
done
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question_answer 113) A block of mass 10 kg is in contact against the inner wall of a hollow cylindrical drum of radius 1 m. The coefficient of friction between the block and the inner wall of the cylinder is 0.1. The minimum angular velocity needed for the cylinder to keep the block stationary when the cylinder is vertical and rotating about its axis, will be: [NEET 5-5-2019] \[(g=10\text{ }m/{{s}^{2}})\]
A)
10 rad/s
done
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B)
10 π rad/s
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C)
(c)\[\sqrt{10\text{ }}rad/s\]
done
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D)
\[\frac{10}{2\pi }rad/s\]
done
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question_answer 114) A small hole of area of cross-section 2 \[m{{m}^{2}}\]is present near the bottom of a fully filled open tank of height 2 m. Taking\[g=10\text{ }m/{{s}^{2}}\], the rate of flow of water through the open hole would be nearly: [NEET 5-5-2019]
A)
\[2.23\times {{10}^{6}}\text{ }{{m}^{3}}/s\]
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B)
\[6.4\times {{10}^{6}}\text{ }{{m}^{3}}/s\]
done
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C)
\[12.6\times {{10}^{6}}\text{ }{{m}^{3}}/s\]
done
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D)
\[8.9\times {{10}^{6}}\text{ }{{m}^{3}}/s\]
done
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question_answer 115) When an object is shot from the bottom of a long smooth inclined plane kept at an angle\[60{}^\circ \] with horizontal, it can travel a distance \[{{x}_{1}}\]along the plane. But when the inclination is decreased to \[30{}^\circ \] and the same object is shot with the same velocity, it can travel \[{{x}_{2}}\]distance. Then \[{{x}_{1}}:{{x}_{2}}\]will be: [NEET 5-5-2019]
A)
\[1:\sqrt{3}\]
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B)
\[1:2\sqrt{3}\]
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C)
\[1:\sqrt{2}\]
done
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D)
\[\sqrt{2}:1\]
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question_answer 116) A cylindrical conductor of radius R is carrying a constant current. The plot of the magnitude of the magnetic field, B with the distance, d, from the centre of the conductor, is correctly represented by the figure: [NEET 5-5-2019]
A)
done
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B)
done
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C)
done
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D)
done
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question_answer 117) A soap bubble, having radius of 1 mm, is blown from a detergent solution having a surface tension of \[2.5\times {{10}^{2}}\]N/m. The pressure inside the bubble equals at a point \[{{Z}_{0}}\]below the free surface of water in a container. Taking\[g=10\text{ }m/{{s}^{2}}\], density of water\[={{10}^{3}}kg/{{m}^{3}}\], the value of \[{{Z}_{0}}\] is: [NEET 5-5-2019]
A)
1 cm
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B)
0.5 cm
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C)
100 cm
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D)
10 cm
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question_answer 118) The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, is: [NEET 5-5-2019]
A)
\[\frac{1}{2}mgR\]
done
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B)
\[\frac{3}{2}mgR\]
done
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C)
\[mgR\]
done
clear
D)
\[2mgR\]
done
clear
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question_answer 119) Which of the following acts as a circuit protection device? [NEET 5-5-2019]
A)
Switch
done
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B)
fuse
done
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C)
Conductor
done
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D)
inductor
done
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question_answer 120) Two particles A and B are moving in uniform circular motion in concentric circles of radii \[{{r}_{A}}\]and \[{{r}_{B}}\]with speed \[{{v}_{A}}\]and \[{{v}_{B}}\]respectively. Their time period of rotation is the same. The ratio of angular speed of A to that of B will be: [NEET 5-5-2019]
A)
\[{{r}_{B}}:{{r}_{A}}\]
done
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B)
1 : 1
done
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C)
\[{{r}_{A}}:{{r}_{B}}\]
done
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D)
\[{{v}_{A}}:{{v}_{B}}\]
done
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question_answer 121) A parallel plate capacitor of capacitance 20 \[\mu F\]is being charged by a voltage source whose potential is changing at the rate of 3 V/s. The conduction current through the connecting wires, and the displacement current through the plates of the capacitor, would be, respectively: [NEET 5-5-2019]
A)
60 \[\mu A\], zero
done
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B)
zero, zero
done
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C)
zero, 60 \[\mu A\]
done
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D)
60 \[\mu A\], 60 \[\mu A\]
done
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question_answer 122)
The radius of circle, the period of revolution, initial position and sense of revolution are indicated in the fig. [NEET 5-5-2019] Y-projection of the radius vector of rotating particle P is:
A)
(a)\[(y)t=3cos\left( \frac{3\pi t}{2} \right)\], where y in m
done
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B)
\[(y)t=3cos\left( \frac{\pi t}{2} \right)\], where y in m
done
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C)
\[(y)t=-3cos2\pi t\], where y in m
done
clear
D)
\[(y)t=4\sin \left( \frac{\pi t}{2} \right)\], where y in m
done
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question_answer 123) For a p-type semiconductor, which of the following statements is true? [NEET 5-5-2019]
A)
Holes are the majority carriers and pentavalent atoms are the dopants
done
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B)
Electrons are the majority carriers and pentavalent atoms are the dopants
done
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C)
Electrons are the majority carriers and trivalent atoms are teh dopants
done
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D)
Holes are the majority carriers and trivalent atoms are the dopants
done
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question_answer 124)
Six similar bulbs are connected as shown in the figure with a DC source of emf E and zero internal resistance. The ratio of power consumption by the bulbs when (i) all are glowing and (ii) in the situation when two from section A and one from section B are glowing, will be-[NEET 5-5-2019]
A)
1 : 2
done
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B)
2 : 1
done
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C)
4 : 9
done
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D)
9 : 4
done
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question_answer 125) Increase in temperature of a gas filled in a container would lead to- [NEET 5-5-2019]
A)
Decrease in its pressure
done
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B)
Decrease in intermolecular distance
done
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C)
Increase in its mass
done
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D)
Increase in its kinetic energy
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question_answer 126) In a double slit experiment, when light of wavelength 400 nm was used, the angular width of the first minima formed on a screen placed 1 m away, was found to be \[0.2{}^\circ \]. What will be the angular width of the first minima. If the entire experimental apparatus is immersed in water? \[({{\mu }_{water}}=4/3)\] [NEET 5-5-2019]
A)
\[0.05{}^\circ \]
done
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B)
\[0.1{}^\circ \]
done
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C)
\[0.266{}^\circ \]
done
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D)
\[0.15{}^\circ \]
done
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question_answer 127) The total energy of an electron in an atom in an orbit is -3.4 eV. Its kinetic and potential energies are, respectively- [NEET 5-5-2019]
A)
3.4 eV, - 6.8 eV
done
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B)
3.4 eV, 3.4 Ev
done
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C)
- 3.4 eV, - 3.4 eV
done
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D)
- 3.4 eV, - 6.8 eV
done
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question_answer 128) Which colour of the light has the longest wavelength? [NEET 5-5-2019]
A)
Green
done
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B)
violet
done
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C)
Red
done
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D)
blue
done
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question_answer 129) In total internal reflection when the angle of incidence is equal to the critical angle for the pair of media in contact, what will angle of refraction? [NEET 5-5-2019]
A)
Equal to angle of incidence
done
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B)
\[90{}^\circ \]
done
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C)
\[180{}^\circ \]
done
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D)
\[0{}^\circ \]
done
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question_answer 130) A disc of radius 2 m and mass 100 kg rolls on a horizontal floor. Its centre of mass has speed of 20 cm/s. How much work is needed to stop it? [NEET 5-5-2019]
A)
2 J
done
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B)
1 J
done
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C)
3 J
done
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D)
30 kJ
done
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question_answer 131) When a block of mass M is suspended by a long wire of length L, the length of the wire becomes\[(L+l)\]. The elastic potential energy stored in the extended wire is- [NEET 5-5-2019]
A)
\[\frac{1}{2}Mgl\]
done
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B)
\[\frac{1}{2}MgL\]
done
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C)
\[Mgl\]
done
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D)
\[MgL\]
done
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question_answer 132) A solid cylinder of mass 2 kg and radius 4 cm is rotating about its axis at the rate of 3 rpm. The torque required to stop after \[2\pi \] revolutions is- [NEET 5-5-2019]
A)
\[12\times {{10}^{4}}\text{ }Nm\]
done
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B)
\[2\times {{10}^{6}}\text{ }Nm\]
done
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C)
\[2\times {{10}^{6}}\text{ }Nm\]
done
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D)
\[2\times {{10}^{3}}\text{ }Nm\]
done
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question_answer 133) Two point charges A and B, having charges +Q and -Q respectively, are placed at certain distance apart and force acting between them is F. If 25 % charge of A is transferred to B, then force between the charges becomes- [NEET 5-5-2019]
A)
\[\frac{16F}{9}\]
done
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B)
\[\frac{4F}{3}\]
done
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C)
F
done
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D)
\[\frac{9F}{16}\]
done
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question_answer 134) Pick the wrong answer in the context with rainbow. [NEET 5-5-2019]
A)
An observer can see a rainbow when his front is towards the sun
done
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B)
Rainbow is a combined effect of dispersion, refraction and reflection of sunlight
done
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C)
When the light rays undergo two internal reflections in a water drop, a secondary rainbow is formed
done
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D)
The order of colours is reversed in the secondary rainbow
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question_answer 135) A copper rod of 88 cm and an aluminium rod of unknown length have their increase in length independent of increase in temperature. The length of aluminium rod is-[NEET 5-5-2019] \[({{\alpha }_{Cu}}=1.7\times {{10}^{5}}\text{ }{{K}^{1}}\text{ }and\,{{\alpha }_{Al}}=\] \[~2.2\times {{10}^{5}}\text{ }{{K}^{1}})\]
A)
88 cm
done
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B)
68 cm
done
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C)
6.8 cm
done
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D)
113.9 cm
done
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question_answer 136) In which case change in entropy is negative? [NEET 5-5-2019]
A)
Sublimation of solid to gas
done
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B)
\[2H(g)\to {{H}_{2}}(g)\]
done
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C)
Evaporation of water
done
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D)
Expansion of a gas at temperature
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question_answer 137) For the chemical reaction \[{{N}_{2}}\text{(g)}+3{{H}_{2}}(g)\rightleftharpoons 2N{{H}_{3}}\left( g \right)\] [NEET 5-5-2019]
A)
\[-\frac{d[{{N}_{2}}]}{dt}=\frac{1}{2}\frac{d[N{{H}_{3}}]}{dt}\]
done
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B)
\[3\frac{d[{{H}_{2}}]}{dt}=2\frac{d[N{{H}_{3}}]}{dt}\]
done
clear
C)
\[-\frac{1}{3}\frac{d[{{H}_{2}}]}{dt}=-\frac{1}{2}\frac{d[N{{H}_{3}}]}{dt}\]
done
clear
D)
\[-\frac{d[{{N}_{2}}]}{dt}=2\frac{d[N{{H}_{3}}]}{dt}\]
done
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question_answer 138) Which of the following diatomic molecular species has only \[\pi \] bonds according to Molecular Orbital Theory? [NEET 5-5-2019]
A)
\[{{C}_{2}}\]
done
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B)
\[B{{e}_{2}}\]
done
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C)
\[{{O}_{2}}\]
done
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D)
\[{{N}_{2}}\]
done
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question_answer 139) Which of the following is incorrect statement? [NEET 5-5-2019]
A)
\[Ge{{X}_{4}}\](X=F, Cl, Br, I) is more stable than
done
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B)
\[Sn{{F}_{4}}\]is ionic in nature
done
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C)
\[Pb{{F}_{4}}\]is covalent in nature
done
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D)
\[SiC{{l}_{4}}\]is easily hydrolysed
done
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question_answer 140) Under isothermal condition, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar. The work done by the gas is [Given that 1 L bar = 100 J] [NEET 5-5-2019]
A)
25 J
done
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B)
30 J
done
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C)
-30 J
done
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D)
5 Kj
done
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question_answer 141) The compound that is most difficult to protonate is: [NEET 5-5-2019]
A)
done
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B)
done
clear
C)
done
clear
D)
done
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question_answer 142) Which of the following is an amphoteric hydroxide? [NEET 5-5-2019]
A)
\[Mg{{(OH)}_{2}}\]
done
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B)
\[Be{{(OH)}_{2}}\]
done
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C)
\[Sr{{(OH)}_{2}}\]
done
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D)
\[Ca{{(OH)}_{2}}\]
done
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question_answer 143) The correct structure of tribromooctaoxide is- [NEET 5-5-2019]
A)
done
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B)
done
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C)
done
clear
D)
done
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question_answer 144) The biodegradable polymer is- [NEET 5-5-2019]
A)
nylon-6
done
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B)
Buna-S
done
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C)
nylon-6, 6
done
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D)
nylon 2-nylon 6
done
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question_answer 145) Among the following, the reaction that proceeds through an electrophilic substitution, is- [NEET 5-5-2019]
A)
done
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B)
done
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C)
done
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D)
done
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question_answer 146)
Match the following: [NEET 5-5-2019] [a] Pure nitrogen (i) Chlorine [b] Haber process (ii) Sulphuric acid [c] Contact process (iii) Ammonia [d] Deacon?s process (iv) Sodium azide or Barium azide
Which of the following is the correct option? (d)
A)
[A] (iii) [B] (iv) [C] (ii) [D] (i)
done
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B)
[A] (iv) [B] (iii) [C] (ii) [D] (i)
done
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C)
[A] (i) [B] (ii) [C] (iii) [D] (iv)
done
clear
D)
[A] (ii) [B] (iv) [C] (i) [D] (iii)
done
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question_answer 147) The number of sigma (\[\sigma \]) and pi (\[\pi \]) bonds in pent-2-en-4-yne is- [NEET 5-5-2019]
A)
11 \[\sigma \] bonds and 2 \[\pi \] bonds
done
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B)
13 \[\sigma \] bonds and no \[\pi \] bond
done
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C)
10 \[\sigma \] bonds and 3 \[\pi \] bonds
done
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D)
8 \[\sigma \] bonds and 5\[\pi \] bonds
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question_answer 148) Enzymes that utilize ATP is phosphate transfer require an alkaline earth metal (M) as the cofactor. M is- [NEET 5-5-2019]
A)
Ca
done
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B)
Sr
done
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C)
Be
done
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D)
Mg
done
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question_answer 149) Identify the incorrect statement related to \[PC{{l}_{5}}\]from the following- [NEET 5-5-2019]
A)
Axial P-Cl bonds are longer than equatorial P-Cl bonds
done
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B)
\[PC{{l}_{5}}\] molecule is non-reactive
done
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C)
Three equatorial P-Cl bonds make an angle of \[120{}^\circ \] with each other
done
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D)
Two axial P-Cl bonds make an angle of \[180{}^\circ \]with each other
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question_answer 150) If the rate constant for a first order reaction is k, the time (t) required for the completion of 99 % of the reaction is given by-[NEET 5-5-2019]
A)
t = 4.606/k
done
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B)
t = 2.303/k
done
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C)
t = 0.693/k
done
clear
D)
t = 6.909/k
done
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question_answer 151)
The most suitable reagent for the following conversion, is: [NEET 5-5-2019]
A)
\[Zn/HCl\]
done
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B)
\[H{{g}^{2+}}/{{H}^{+}},{{H}_{2}}O\]
done
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C)
\[Na/liquid\text{ }N{{H}_{3}}\]
done
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D)
\[{{H}_{2}},\text{ }Pd/C,quinoline\]
done
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question_answer 152) The manganate and permanganate ions are tetrahedral due to- [NEET 5-5-2019]
A)
The \[\pi \]-bonding involves overlap of p-orbitals of oxygen with p-orbtials of manganese
done
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B)
The \[\pi \]-bonding involves overlap of d-orbitals of oxygen with d-orbitals of manganese
done
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C)
The \[\pi \]-bonding involves overlap of p-orbitals of oxygen with d-orbitals of manganese
done
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D)
There is no \[\pi \]-bonding
done
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question_answer 153) For a cell involving one electron \[E_{cell}^{\Theta }=0.59\text{ }V\text{ }at\text{ }298\text{ }K\], the equilibrium constant for the cell reaction is: [NEET 5-5-2019] [Given that \[\frac{2.303kT}{F}=0.059\text{ }V\text{ }at\text{ }T=298\text{ }K\]]
A)
\[1.0\times {{10}^{10}}\]
done
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B)
\[1.0\times {{10}^{30}}\]
done
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C)
\[1.0\times {{10}^{2}}\]
done
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D)
\[1.0\times {{10}^{5}}\]
done
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question_answer 154) pH of a saturated solution of \[Ca{{(OH)}_{2}}\]is 9. The solubility product \[({{K}_{sp}})\] of \[Ca{{(OH)}_{2}}\] is- [NEET 5-5-2019]
A)
\[0.125\times {{10}^{15}}\]
done
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B)
\[0.5\times {{10}^{10}}\]
done
clear
C)
\[0.5\times {{10}^{15}}\]
done
clear
D)
\[0.25\times {{10}^{10}}\]
done
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question_answer 155) For an ideal solution, the correct option is- [NEET 5-5-2019]
A)
\[{{\Delta }_{mix}}\]H = 0 at constant T and P
done
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B)
\[{{\Delta }_{\min }}\]G = 0 at constant T and P
done
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C)
\[{{\Delta }_{mix}}\] S = 0 at constant T and P
done
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D)
\[{{\Delta }_{mix}}\] \[V\ne 0\]at constant T and P
done
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question_answer 156) A gas at 350 K and 15 bar has molar volume 20 percent smaller than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor (Z) is- [NEET 5-5-2019]
A)
Z < 1 and attractive forces are dominant
done
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B)
Z < 1 and repulsive forces are dominant
done
clear
C)
Z > 1 and attractive forces are dominant
done
clear
D)
Z > 1 and repulsive forces are dominant
done
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question_answer 157) The correct order of the basic strength of methyl substituted amines in aqueous solution is- [NEET 5-5-2019]
A)
\[{{(C{{H}_{3}})}_{3}}N.{{\text{(}C{{H}_{3}}\text{)}}_{2}}NH>C{{H}_{3}}N{{H}_{2}}\]
done
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B)
\[C{{H}_{3}}N{{H}_{2}}>{{\text{(}C{{H}_{3}}\text{)}}_{2}}NH>{{\text{(}C{{H}_{3}}\text{)}}_{3}}N\]
done
clear
C)
\[{{(C{{H}_{3}})}_{2}}NH>C{{H}_{3}}N{{H}_{2}}>{{\text{(}C{{H}_{3}}\text{)}}_{3}}N\]
done
clear
D)
\[{{(C{{H}_{3}})}_{3}}N>C{{H}_{3}}N{{H}_{2}}>{{\text{(}C{{H}_{3}}\text{)}}_{2}}NH\]
done
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question_answer 158) For the second period elements the correct increasing order of first ionization enthalpy is- [NEET 5-5-2019]
A)
Li < B < Be < C < N < O < F < Ne
done
clear
B)
Li < Be < B < C < O < N < F < Ne
done
clear
C)
Li < Be < B < C < N < O < F < Ne
done
clear
D)
Li < B < Be < C < O < N < F < Ne
done
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question_answer 159) Which mixture of the solution will lead to the formation of negatively charged colloidal \[[AgI]{{I}^{}}\] [NEET 5-5-2019]
A)
\[50mL\text{ }of\text{ }2M\text{ }AgN{{O}_{3}}+50mL\text{ }of\text{ }1.5M\text{ }KI\]
done
clear
B)
\[50mL\text{ }of\text{ }0.1M\text{ }AgN{{O}_{3}}+50mL\text{ }of\text{ }0.1M\text{ }KI\]
done
clear
C)
\[50mL\text{ }of\text{ }1M\text{ }AgN{{O}_{3}}+50mL\text{ }of\text{ }1.5M\text{ }KI\]
done
clear
D)
\[50mL\text{ }of\text{ }M\text{ }AgN{{O}_{3}}+50mL\text{ }of\text{ }2M\text{ }KI\]
done
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question_answer 160)
For the cell reaction [NEET 5-5-2019]
\[2F{{e}^{3+}}(aq)+2{{I}^{}}(aq)\to 2F{{e}^{2+}}(aq)+{{I}_{2}}(aq)\]\[E_{cell}^{\Theta }\text{ }E=0.24\text{ }Vat\text{ }298\text{ }K\]. The standard Gibbs energy \[({{\Delta }_{r}}{{G}^{\Theta }})\] of the cell reaction is:
[Given that Faraday constant\[F=96500\text{ }C\text{ }mo{{l}^{1}}\]]
A)
\[46.32\text{ }kJ\text{ }mo{{l}^{1}}\]
done
clear
B)
\[23.16\text{ }kJ\text{ }mo{{l}^{1}}\]
done
clear
C)
\[-46.32\text{ }kJ\text{ }mo{{l}^{1}}\]
done
clear
D)
\[-23.16\text{ }kJ\text{ }mo{{l}^{1}}\]
done
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question_answer 161) Which is the correct thermal stability order for \[{{H}_{2}}E\](E = O, S, Se, Te and Po)? [NEET 5-5-2019]
A)
\[{{H}_{2}}Po<{{H}_{2}}Te<{{H}_{2}}Se<{{H}_{2}}S<{{H}_{2}}O\]
done
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B)
\[{{H}_{2}}Se<{{H}_{2}}Te<{{H}_{2}}Po<{{H}_{2}}O<{{H}_{2}}S\]
done
clear
C)
\[{{H}_{2}}S<{{H}_{2}}O<{{H}_{2}}Se<{{H}_{2}}Te<{{H}_{2}}Po\]
done
clear
D)
\[{{H}_{2}}O<{{H}_{2}}S<{{H}_{2}}Se<{{H}_{2}}Te<{{H}_{2}}Po\]
done
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question_answer 162) The number of moles of hydrogen molecules required to produce 20 moles of ammonia through Haber?s process is: [NEET 5-5-2019]
A)
30
done
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B)
40
done
clear
C)
10
done
clear
D)
20
done
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question_answer 163) Which of the following series of transitions in the spectrum of hydrogen atom falls in visible region? [NEET 5-5-2019]
A)
Paschen series
done
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B)
Brackett series
done
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C)
Lyman series
done
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D)
Balmer series
done
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question_answer 164) A compound is formed by cation C and anion A. The anions form hexagonal close packed (hcp) lattice and the cations occupy 75% of octahedral voids. The formula of the compound is: [NEET 5-5-2019]
A)
\[{{C}_{3}}{{A}_{4}}\]
done
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B)
\[{{C}_{4}}{{A}_{3}}\]
done
clear
C)
\[{{C}_{2}}{{A}_{3}}\]
done
clear
D)
\[{{C}_{3}}{{A}_{2}}\]
done
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question_answer 165) The non-essential amino acid among the following is: [NEET 5-5-2019]
A)
Alanine
done
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B)
lysine
done
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C)
Valine
done
clear
D)
leucine
done
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question_answer 166) An alkene 'A' on reaction with \[{{O}_{3}}\]and \[Zn+{{H}_{2}}O\]gives propanone and ethanal in equimolar ratio. Addition of HCl to alkene 'A' gives 'B' as the major product. The structure of product 'B' is: [NEET 5-5-2019]
A)
done
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B)
done
clear
C)
done
clear
D)
done
clear
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question_answer 167) Which of the following species is not stable? [NEET 5-5-2019]
A)
\[{{\left[ Sn{{(OH)}_{6}} \right]}^{2}}\]
done
clear
B)
\[{{\left[ SiC{{l}_{6}} \right]}^{2}}\]
done
clear
C)
\[{{\left[ Si{{F}_{6}} \right]}^{2}}\]
done
clear
D)
\[{{\left[ GeC{{l}_{6}} \right]}^{2}}\]
done
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question_answer 168)
Match the Xenon compounds in Column-I with its structure in column-II and assign the correct code: [NEET 5-5-2019] Column - I Column - II [a] \[Xe{{F}_{4}}\] (i) pyramidal [b] \[Xe{{F}_{6}}\] (ii) square planar [c] \[XeO{{F}_{4}}\] (iii) distorted octahedral [d]\[Xe{{O}_{3}}\] (iv) square pyramidal
Code:
A)
[A] (ii) [B] (iii) [C] (i) [D] (iv)
done
clear
B)
[A] (iii) [B] (iv) [C] (i) [D] (ii)
done
clear
C)
[A] (i) [B] (ii) [C] (iii) [D] (iv)
done
clear
D)
[A] (ii) [B] (iii) [C] (iv) [D] (i)
done
clear
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question_answer 169) Among the following, the one that is not a greenhouse gas is: [NEET 5-5-2019]
A)
Ozone
done
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B)
sulphur dioxide
done
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C)
Nitrous oxide
done
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D)
methane
done
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question_answer 170)
Which of the following reactions are disproportionation reaction? [NEET 5-5-2019] (i) \[2C{{u}^{+}}\to C{{u}^{2}}+C{{u}^{0}}\] (ii) \[3MnO_{4}^{2+}+4{{H}^{+}}\to 2MnO_{_{4}}^{-}+Mn{{O}_{2}}\] \[+2{{H}_{2}}O\] (iii) \[2KMn{{O}_{4}}\xrightarrow{\Delta }{{K}_{2}}Mn{{O}_{4}}+Mn{{O}_{2}}\] \[+{{O}_{2}}\] (iv) \[2MnO_{4}^{-}+3M{{n}^{2+}}+2{{H}_{2}}O\to 5Mn{{O}_{2}}\] \[+4{{H}^{\oplus }}\] Select the correct option from the following:
A)
(i), (iii) and (iv)
done
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B)
(i) and (iv) only
done
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C)
(i) and (ii) only
done
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D)
(i), (ii) and (iii)
done
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question_answer 171)
The structure of intermediate A in the following reaction, is: [NEET 5-5-2019]
A)
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B)
done
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C)
done
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D)
done
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question_answer 172) The mixture that forms maximum boiling azeotrope is: [NEET 5-5-2019]
A)
Acetone + Carbon disulphide
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B)
Heptane + Octane
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C)
Water + Nitric acid
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D)
Ethanol + Water
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question_answer 173) What is the correct electronic configuration of the central atom in \[{{K}_{4}}\left[ Fe{{(CN)}_{6}} \right]\]based on crystal field theory? [NEET 5-5-2019]
A)
\[{{e}^{3}}t_{2}^{3}\]
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B)
\[{{e}^{4}}t_{2}^{2}\]
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C)
\[t_{2g}^{4}e_{g}^{2}\]
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D)
\[t_{2g}^{6}e_{g}^{0}\]
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question_answer 174) Conjugate base for Bronsted acids \[{{H}_{2}}O\]and HF are: [NEET 5-5-2019]
A)
\[O{{H}^{}}\]and\[{{F}^{}}\], respectively
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B)
\[{{H}_{3}}{{O}^{+}}\]and\[{{H}_{2}}{{F}^{+}}\], respectively
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C)
\[O{{H}^{}}\]and\[{{H}_{2}}{{F}^{+}}\], respectively
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D)
\[{{H}_{3}}{{O}^{+}}\]and\[{{F}^{}}\], respectively
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question_answer 175) Which will make basic buffer? [NEET 5-5-2019]
A)
\[100\text{ }mL\text{ }of\text{ }0.1\text{ }M\text{ }HCl+200\text{ }mL\text{ }of\text{ }\] \[0.1M\text{ }N{{H}_{4}}OH\]
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B)
\[100\text{ }mL\text{ }of\text{ }0.1\text{ }M\text{ }HCl+100\text{ }mL\text{ }of\text{ }\] \[0.1\text{ }M\text{ }NHOH\]
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C)
\[50\text{ }mL\text{ }of\text{ }0.1\text{ }M\text{ }NaOH+25\text{ }mL\text{ }of\] \[0.1\text{ }M\text{ }C{{H}_{3}}COOH\]
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D)
\[100\text{ }mL\text{ }of\text{ }0.1\text{ }M\text{ }C{{H}_{3}}COOH+100\] \[mL\text{ }of\text{ }0.1\text{ }M\text{ }NaOH\]
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question_answer 176) 4d, 5p, 5f and 6p orbitals are arranged in the order of decreasing energy. The correct option is: [NEET 5-5-2019]
A)
6p > 5f > 4d > 5p
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B)
5f > 6p > 4d > 5p
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C)
5f > 6p > 5p > 4d
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D)
6p > 5f > 5p > 4d
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question_answer 177) Among the following, the narrow spectrum antibiotic is: [NEET 5-5-2019]
A)
amoxycillin
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B)
chloramphenicol
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C)
penicillin G
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D)
ampicillin
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question_answer 178)
The major product of the following reaction is: [NEET 5-5-2019]
A)
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B)
done
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C)
done
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D)
done
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question_answer 179) The method used to remove temporary hardness of water is: [NEET 5-5-2019]
A)
Ion-exchange method
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B)
Synthetic resins method
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C)
Calgon's method
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D)
clark's method
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question_answer 180) Which one is malachite from the following? [NEET 5-5-2019]
A)
\[F{{e}_{3}}{{O}_{4}}\]
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B)
\[CuC{{O}_{3}}\cdot Cu{{(OH)}_{2}}\]
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C)
\[CuFe{{S}_{2}}\]
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D)
\[Cu{{(OH)}_{2}}\]
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