Solved papers for NEET NEET SOLVED PAPER 2019

done NEET SOLVED PAPER 2019 Total Questions - 180

• question_answer1) 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_answer2) 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
  View Answer play_arrow

• question_answer3) 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_answer4) 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
  View Answer play_arrow

• question_answer5) 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
  View Answer play_arrow

• question_answer6) 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_answer7) 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_answer8) 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_answer9) 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_answer10) 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_answer11) 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_answer12) 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_answer13) 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_answer14) 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_answer15) 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_answer16) 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_answer17) 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_answer18) 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_answer19) 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
  View Answer play_arrow

• question_answer20) 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
  View Answer play_arrow

• question_answer21) 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_answer22) 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
  View Answer play_arrow

• question_answer23) Under which of the following conditions will there be no change in the reading frame of following mRNA? [NEET 5-5-2019]

  5' AACAGCGGUGCUAUU 3'

  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_answer24) 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
  View Answer play_arrow

• question_answer25) 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_answer26) 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_answer27) 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_answer28) 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
  View Answer play_arrow

• question_answer29)   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
  View Answer play_arrow

• question_answer30) 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
  View Answer play_arrow

• question_answer31) 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
  View Answer play_arrow

• question_answer32) 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
  View Answer play_arrow

• question_answer33) 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
  View Answer play_arrow

• question_answer34) 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
  View Answer play_arrow

• question_answer35) 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_answer36) 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
  View Answer play_arrow

• question_answer37) 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
  View Answer play_arrow

• question_answer38) 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
  View Answer play_arrow

• question_answer39) 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
  View Answer play_arrow

• question_answer40) 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_answer41) 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
  View Answer play_arrow

• question_answer42) 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_answer43) 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_answer44) 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
  View Answer play_arrow

• question_answer45) 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
  View Answer play_arrow

• question_answer46) 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_answer47) 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
  View Answer play_arrow

• question_answer48) 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
  View Answer play_arrow

• question_answer49) 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
  View Answer play_arrow

• question_answer50) 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
  View Answer play_arrow

• question_answer51) 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
  View Answer play_arrow

• question_answer52) 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
  View Answer play_arrow

• question_answer53) 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_answer54) 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
  View Answer play_arrow

• question_answer55) 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
  View Answer play_arrow

• question_answer56) 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
  View Answer play_arrow

• question_answer57) 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
  View Answer play_arrow

• question_answer58) 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
  View Answer play_arrow

• question_answer59) 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
  View Answer play_arrow

• question_answer60) 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
  View Answer play_arrow

• question_answer61) 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_answer62) 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 clear
  View Answer play_arrow

• question_answer63) 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 clear
  B)
  Law of Segregation does not apply in this experiment
  done clear
  C)
  This experiment does not follow the Principle of Dominance
  done clear
  D)
  Pink colour in is due \[{{F}_{1}}\]to incomplete dominance
  done clear
  View Answer play_arrow

• question_answer64) 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
  done clear
  B)
  Cyclical Selection
  done clear
  C)
  Directional Selection
  done clear
  D)
  Stabilizing Selection
  done clear
  View Answer play_arrow

• question_answer65) Concanavalin A is:          [NEET 5-5-2019]
  A)
  A lectin
  done clear
  B)
  a pigment
  done clear
  C)
  An alkaloid                   
  done clear
  D)
  an essential oil
  done clear
  View Answer play_arrow

• question_answer66) 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)
  done clear
  B)
  [a] (ii)    [b] (iii)     [c] (v)  [d] (iv)
  done clear
  C)
  [a] (iv)    [b] (i)      [c] (ii)  [d] (iii)
  done clear
  D)
  [a] (iv)   [b] (i)       [c] (ii)   [d] (v)
  done clear
  View Answer play_arrow

• question_answer67) 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 clear
  B)
  [a] (iii)   [b] (iv)     [c] (i)    [d] (ii)
  done clear
  C)
  [a] (i)      [b] (iii)   [c] (ii)  [d] (iv)
  done clear
  D)
  [a] (iii)   [b] (i)       [c] (ii)   [d] (iv)
  done clear
  View Answer play_arrow

• question_answer68) Which of the following statements is not correct?                 [NEET 5-5-2019]
  A)
  Lysosomes are membrane bound structures.
  done clear
  B)
  Lysosomes are formed by the process of packaging in the endoplasmic reticulum.
  done clear
  C)
  Lysosomes have numerous hydrolytic enzymes.
  done clear
  D)
  The hydrolytic enzymes of lysosomes are active under acidic pH.
  done clear
  View Answer play_arrow

• question_answer69) In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as: [NEET 5-5-2019]
  A)
  Syngamy                      
  done clear
  B)
  Parthenogenesis
  done clear
  C)
  Autogamy                     
  done clear
  D)
  Parthenocarpy
  done clear
  View Answer play_arrow

• question_answer70) 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)
  done clear
  B)
  [a] (ii)    [b] (iii)     [c] (iv)              [d] (i)
  done clear
  C)
  [a] (i)      [b] (ii)     [c] (iii)  [d] (iv)
  done clear
  D)
  [a] (iii)   [b] (ii)      [c] (i)     [d] (iv)
  done clear
  View Answer play_arrow

• question_answer71) Which of the following is a commercial blood cholesterol lowering agent? [NEET 5-5-2019]
  A)
  Streptokinase                 
  done clear
  B)
  Lipases
  done clear
  C)
  Cyclosporin A    
  done clear
  D)
    Statin
  done clear
  View Answer play_arrow

• question_answer72) 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
  done clear
  B)
  Genetic code is specific
  done clear
  C)
  Genetic code is not ambiguous
  done clear
  D)
  Genetic code is redundant
  done clear
  View Answer play_arrow

• question_answer73) 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
  done clear
  B)
  Bronchioles and Fallopian tubes
  done clear
  C)
  Bile duct and Bronchioles
  done clear
  D)
  Fallopian tubes and Pancreatic duct
  done clear
  View Answer play_arrow

• question_answer74) Conversion of glucose to glucose-6phosphate, the first irreversible reaction of glycolysis, is catalyzed by- [NEET 5-5-2019]
  A)
  Enolase
  done clear
  B)
  Phosphofructokinase
  done clear
  C)
  Aldolase           
  done clear
  D)
  Hexokinase
  done clear
  View Answer play_arrow

• question_answer75) Which one of the following is not a method of in situ conservation of biodiversity?       [NEET 5-5-2019]
  A)
  Botanical Garden           
  done clear
  B)
  Sacred Grove
  done clear
  C)
  Biosphere Reserve
  done clear
  D)
    Wildife Sanctuary
  done clear
  View Answer play_arrow

• question_answer76) The concept of ''Omnis cellula-e cellula'' regarding cell division was first proposed by:                [NEET 5-5-2019]
  A)
  Schleiden          
  done clear
  B)
  Aristotle
  done clear
  C)
  Rudolf Virchow  
  done clear
  D)
  Theodore Schwann
  done clear
  View Answer play_arrow

• question_answer77) Select the correct group of biocontrol agents                                   [NEET 5-5-2019]
  A)
  Oscillatoria, Rhizobium, Trichoderma
  done clear
  B)
  Nostoc, Azospirillium, Nucleopolyhedrovirus
  done clear
  C)
  Bacillus thuringiensis, Tobacco mosaic virus, Aphids
  done clear
  D)
  Trichoderma, Baculovirus, Bacillus thuringiensis
  done clear
  View Answer play_arrow

• question_answer78) 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
  done clear
  B)
  Salmonella typhi/ Widal test
  done clear
  C)
  Plasmodium vivax/ UTI test
  done clear
  D)
  Streptococcus pneumoniae/ Widal test
  done clear
  View Answer play_arrow

• question_answer79) Select the incorrect statement.                  [NEET 5-5-2019]
  A)
  In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.
  done clear
  B)
  Human males have one of their sex-chromosome much shorter than the other.
  done clear
  C)
  Male fruit fly is heterogametic
  done clear
  D)
  In male grasshoppers, 50% of sperms have no sex-chromosome.
  done clear
  View Answer play_arrow

• question_answer80) 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
  done clear
  B)
  Pharynx \[\to \]Oesophagus\[\to \] Ileum \[\to \] Crop \[\to \]Gizzard \[\to \] Colon \[\to \] Rectum
  done clear
  C)
  Pharynx \[\to \] Oesophagus \[\to \]Crop \[\to \]Gizzard \[\to \]Ileum \[\to \] Colon \[\to \]Rectum
  done clear
  D)
  Pharynx \[\to \]Oesophagus \[\to \]Gizzard \[\to \]Crop \[\to \]Ileum \[\to \]Colon \[\to \]Rectum
  done clear
  View Answer play_arrow

• question_answer81) 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     
  done clear
  B)
  Immunoglobulin A
  done clear
  C)
  Natural killer cells
  done clear
  D)
    Monocytes
  done clear
  View Answer play_arrow

• question_answer82) 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 clear
  B)
  One fuses with the egg and other fuses with central cell nuclei.
  done clear
  C)
  One fuses with the egg, other (s) degenerate (s) in the synergid.
  done clear
  D)
  All fuse with the egg.
  done clear
  View Answer play_arrow

• question_answer83) 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 clear
  B)
  A unit of distance between genes on chromosomes, representing 50% cross over.
  done clear
  C)
  A unit of distance between two expressed genes, representing 10% cross over.
  done clear
  D)
  A unit of distance between two expressed genes, representing 100% cross over.
  done clear
  View Answer play_arrow

• question_answer84) Select the horomone-releasing Intra-Uterine Devices.                                       [NEET 5-5-2019]
  A)
  Progestasert, LNG-20
  done clear
  B)
  Lippes Loop, Multiload 375
  done clear
  C)
  Vaults, LNG-20
  done clear
  D)
  Multiload 375, Progestasert
  done clear
  View Answer play_arrow

• question_answer85) Select the correctly written scientific name of Mango which was first described by Carolus Linnaeus.                  [NEET 5-5-2019]
  A)
  Mangifera indica                        
  done clear
  B)
  Mangifera Indica
  done clear
  C)
  Mangifera indica Car. Linn.
  done clear
  D)
  Mangifera Indica Linn
  done clear
  View Answer play_arrow

• question_answer86) Which of the following pairs of gases is mainly responsible for greenhouse effect? [NEET 5-5-2019]
  A)
  Nitrogen and Sulphur dioxide
  done clear
  B)
  Carbon dioxide and Methane
  done clear
  C)
  Ozone and Ammonia
  done clear
  D)
  Oxygen and Nitrogen
  done clear
  View Answer play_arrow

• question_answer87) 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           
  done clear
  B)
  Sutton Boveri
  done clear
  C)
  T.H. Morgan     
  done clear
  D)
  Gregor J. Mendel
  done clear
  View Answer play_arrow

• question_answer88) Which of the following statements in correct? [NEET 5-5-2019]
  A)
  Cornea is convex, transparent layer which is highly vascularized
  done clear
  B)
  Cornea consists of dense matrix of collagen and is the most sensitive portion of the eye.
  done clear
  C)
  Cornea is an external, Transparent and protective proteinacious covering of the eye-ball
  done clear
  D)
  Cornea consists of dense connective tissue of elastin and can repair itself.
  done clear
  View Answer play_arrow

• question_answer89) Which of the following muscular disorders is inherited?                        [NEET 5-5-2019]
  A)
  Myasthenia gravis          
  done clear
  B)
  Botulism
  done clear
  C)
  Tetany             
  done clear
  D)
  Muscular dystrophy
  done clear
  View Answer play_arrow

• question_answer90) Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for: [NEET 5-5-2019]
  A)
  Construction of roads
  done clear
  B)
  Making tubes and pipes
  done clear
  C)
  Making plastic sacks
  done clear
  D)
  use as a fertilizer
  done clear
  View Answer play_arrow

• question_answer91) Average velocity of a particle executing SHM in one complete vibration is: [NEET 5-5-2019]
  A)
  \[\frac{A{{\omega }^{2}}}{2}\]                       
  done clear
  B)
  Zero
  done clear
  C)
  \[\frac{A\omega }{2}\]                           
  done clear
  D)
  \[A\omega \]
  done clear
  View Answer play_arrow

• question_answer92)             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                 
  done clear
  B)
  3 : 4
  done clear
  C)
  2 : 1                             
  done clear
  D)
  1 : 2
  done clear
  View Answer play_arrow

• question_answer93) 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
  done clear
  B)
  Change according to the smallest force \[\overrightarrow{QR}\]
  done clear
  C)
  Increase
  done clear
  D)
  Decrease
  done clear
  View Answer play_arrow

• question_answer94) 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 clear
  B)
                1 : 4
  done clear
  C)
  2 : 1     
  done clear
  D)
  1 : 2
  done clear
  View Answer play_arrow

• question_answer95) 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)
  \[\frac{4}{9}\]              
  done clear
  B)
    \[\frac{5}{9}\]
  done clear
  C)
  \[\frac{1}{9}\]                          
  done clear
  D)
  \[\frac{8}{9}\]
  done clear
  View Answer play_arrow

• question_answer96) 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       
  done clear
  B)
  \[45{}^\circ \] west
  done clear
  C)
  \[30{}^\circ \] west       
  done clear
  D)
  \[0{}^\circ \]
  done clear
  View Answer play_arrow

• question_answer97) 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 clear
  B)
  \[{{V}_{2}}>{{V}_{1}}\text{ }and\text{ }{{i}_{1}}>{{i}_{2}}\]
  done clear
  C)
  \[{{V}_{2}}>{{V}_{1}}\text{ }and\text{ }{{i}_{1}}={{i}_{2}}\]
  done clear
  D)
  \[{{V}_{1}}={{V}_{2}}\text{ }and\text{ }{{i}_{1}}>{{i}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer98) 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)
  \[2\times {{10}^{3}}\text{ }V\]            
  done clear
  B)
  0.02 V
  done clear
  C)
  2 V                              
  done clear
  D)
  0.2 V
  done clear
  View Answer play_arrow

• question_answer99) 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
  done clear
  B)
  A and B are both located in the southern hemisphere
  done clear
  C)
  A and B are both located in the northern hemisphere
  done clear
  D)
  A is located in the southern hemisphere and B is located in the northern hemisphere
  done clear
  View Answer play_arrow

• question_answer100) 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)
  \[12.2\times {{10}^{14}}m\]    
  done clear
  B)
  12.2 nm
  done clear
  C)
  \[12.2\times {{10}^{13}}m\]    
  done clear
  D)
  \[12.2\times {{10}^{12}}m\]
  done clear
  View Answer play_arrow

• question_answer101) 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 clear
  B)
  A+B
  done clear
  C)
  \[{{A}_{0}}=\sqrt{{{A}^{2}}+{{B}^{2}}}\]
  done clear
  D)
    \[\sqrt{{{A}^{2}}+{{B}^{2}}}\]
  done clear
  View Answer play_arrow

• question_answer102) \[\alpha \]-particle consists of: [NEET 5-5-2019]
  A)
  2 electrons and 4 protons only
  done clear
  B)
  2 protons only
  done clear
  C)
  2 protons and 2 neutrons only
  done clear
  D)
  2 electrons, 2 protons and 2 neutrons
  done clear
  View Answer play_arrow

• question_answer103) 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 clear
  B)
  Decreases as r increases for r < R and for r > R
  done clear
  C)
  Increases as r increases for r < R and for r > R
  done clear
  D)
  Zero as r increases for r < R, decreases as r increases for r > R
  done clear
  View Answer play_arrow

• question_answer104) 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%
  done clear
  B)
                10%
  done clear
  C)
  \[\left( \frac{3}{13} \right)%\]                  
  done clear
  D)
  16%
  done clear
  View Answer play_arrow

• question_answer105) 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     
  done clear
  B)
  20 J
  done clear
  C)
  30 J                             
  done clear
  D)
  5 J
  done clear
  View Answer play_arrow

• question_answer106) In which of the following processes, heat is neither absorbed nor released by a system? [NEET 5-5-2019]
  A)
  Isobaric            
  done clear
  B)
  isochoric
  done clear
  C)
  Isothermal                     
  done clear
  D)
  adiabatic
  done clear
  View Answer play_arrow

• question_answer107) In which of the following devices, the eddy current effect is not used?                  [NEET 5-5-2019]
  A)
  Electromagnet   
  done clear
  B)
  Electric heater
  done clear
  C)
  Induction furnace
  done clear
  D)
    Magnetic braking in train
  done clear
  View Answer play_arrow

• question_answer108) The unit of thermal conductivity is: [NEET 5-5-2019]
  A)
  \[W\text{ }m\text{ }{{K}^{1}}\]                      
  done clear
  B)
  \[~W\text{ }{{m}^{1}}\text{ }{{K}^{1}}\]
  done clear
  C)
  \[J\text{ }m\text{ }{{K}^{b\text{ }1}}\]           
  done clear
  D)
  \[J\text{ }{{m}^{1}}\text{ }{{K}^{1}}\]
  done clear
  View Answer play_arrow

• question_answer109) 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               
  done clear
  B)
  100 N
  done clear
  C)
  150 N               
  done clear
  D)
  200 N
  done clear
  View Answer play_arrow

• question_answer110) 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 clear
  B)
  \[\frac{\lambda }{2\pi {{\in }_{0}}R}N/C\]
  done clear
  C)
  Zero                             
  done clear
  D)
  \[\frac{2\lambda }{\pi {{\in }_{0}}R}N/C\]
  done clear
  View Answer play_arrow

• question_answer111) 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
  done clear
  B)
  Inclined at an angle of \[60{}^\circ \] from vertical
  done clear
  C)
  The mass is at the highest point
  done clear
  D)
  The wire is horizontal
  done clear
  View Answer play_arrow

• question_answer112)  The correct Boolean operation represented by the circuit diagram drawn is: [NEET 5-5-2019]
  A)
  NAND
  done clear
  B)
  NOR
  done clear
  C)
  AND                
  done clear
  D)
  OR
  done clear
  View Answer play_arrow

• question_answer113) 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 clear
  B)
  10 π rad/s
  done clear
  C)
  (c)\[\sqrt{10\text{ }}rad/s\]                     
  done clear
  D)
  \[\frac{10}{2\pi }rad/s\]
  done clear
  View Answer play_arrow

• question_answer114) 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)
  \[2.23\times {{10}^{6}}\text{ }{{m}^{3}}/s\] 
  done clear
  B)
  \[6.4\times {{10}^{6}}\text{ }{{m}^{3}}/s\]
  done clear
  C)
  \[12.6\times {{10}^{6}}\text{ }{{m}^{3}}/s\] 
  done clear
  D)
  \[8.9\times {{10}^{6}}\text{ }{{m}^{3}}/s\]
  done clear
  View Answer play_arrow

• question_answer115) 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)
  \[1:\sqrt{3}\]
  done clear
  B)
  \[1:2\sqrt{3}\]
  done clear
  C)
  \[1:\sqrt{2}\]                 
  done clear
  D)
  \[\sqrt{2}:1\]
  done clear
  View Answer play_arrow

• question_answer116) 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 clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
  View Answer play_arrow

• question_answer117) 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    
  done clear
  B)
  0.5 cm
  done clear
  C)
  100 cm             
  done clear
  D)
  10 cm
  done clear
  View Answer play_arrow

• question_answer118) 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 clear
  B)
  \[\frac{3}{2}mgR\]
  done clear
  C)
  \[mgR\]             
  done clear
  D)
  \[2mgR\]
  done clear
  View Answer play_arrow

• question_answer119) Which of the following acts as a circuit protection device?                                   [NEET 5-5-2019]
  A)
  Switch              
  done clear
  B)
  fuse
  done clear
  C)
  Conductor                     
  done clear
  D)
  inductor
  done clear
  View Answer play_arrow

• question_answer120) 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 clear
  B)
  1 : 1
  done clear
  C)
  \[{{r}_{A}}:{{r}_{B}}\]                       
  done clear
  D)
  \[{{v}_{A}}:{{v}_{B}}\]
  done clear
  View Answer play_arrow

• question_answer121) 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 clear
  B)
  zero, zero
  done clear
  C)
  zero, 60 \[\mu A\]          
  done clear
  D)
  60 \[\mu A\], 60 \[\mu A\]
  done clear
  View Answer play_arrow

• question_answer122) 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 clear
  B)
  \[(y)t=3cos\left( \frac{\pi t}{2} \right)\], where y in m
  done clear
  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 clear
  View Answer play_arrow

• question_answer123) 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 clear
  B)
  Electrons are the majority carriers and pentavalent atoms are the dopants
  done clear
  C)
  Electrons are the majority carriers and trivalent atoms are teh dopants
  done clear
  D)
  Holes are the majority carriers and trivalent atoms are the dopants
  done clear
  View Answer play_arrow

• question_answer124) 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 clear
  B)
  2 : 1
  done clear
  C)
  4 : 9                             
  done clear
  D)
  9 : 4
  done clear
  View Answer play_arrow

• question_answer125) Increase in temperature of a gas filled in a container would lead to-          [NEET 5-5-2019]
  A)
  Decrease in its pressure
  done clear
  B)
  Decrease in intermolecular distance
  done clear
  C)
  Increase in its mass
  done clear
  D)
  Increase in its kinetic energy
  done clear
  View Answer play_arrow

• question_answer126) 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 clear
  B)
  \[0.1{}^\circ \]
  done clear
  C)
  \[0.266{}^\circ \]                      
  done clear
  D)
  \[0.15{}^\circ \]
  done clear
  View Answer play_arrow

• question_answer127) 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 clear
  B)
  3.4 eV, 3.4 Ev
  done clear
  C)
  - 3.4 eV, - 3.4 eV           
  done clear
  D)
  - 3.4 eV, - 6.8 eV
  done clear
  View Answer play_arrow

• question_answer128) Which colour of the light has the longest wavelength?                             [NEET 5-5-2019]
  A)
  Green               
  done clear
  B)
  violet
  done clear
  C)
  Red                              
  done clear
  D)
  blue
  done clear
  View Answer play_arrow

• question_answer129) 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 clear
  B)
  \[90{}^\circ \]
  done clear
  C)
  \[180{}^\circ \]            
  done clear
  D)
    \[0{}^\circ \]
  done clear
  View Answer play_arrow

• question_answer130) 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 clear
  B)
  1 J
  done clear
  C)
  3 J       
  done clear
  D)
  30 kJ
  done clear
  View Answer play_arrow

• question_answer131) 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 clear
  B)
  \[\frac{1}{2}MgL\]
  done clear
  C)
  \[Mgl\]              
  done clear
  D)
  \[MgL\]
  done clear
  View Answer play_arrow

• question_answer132) 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 clear
  B)
  \[2\times {{10}^{6}}\text{ }Nm\]
  done clear
  C)
  \[2\times {{10}^{6}}\text{ }Nm\]
  done clear
  D)
  \[2\times {{10}^{3}}\text{ }Nm\]
  done clear
  View Answer play_arrow

• question_answer133) 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 clear
  B)
  \[\frac{4F}{3}\]
  done clear
  C)
  F                                 
  done clear
  D)
  \[\frac{9F}{16}\]
  done clear
  View Answer play_arrow

• question_answer134) 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 clear
  B)
  Rainbow is a combined effect of dispersion, refraction and reflection of sunlight
  done clear
  C)
  When the light rays undergo two internal reflections in a water drop, a secondary rainbow is formed
  done clear
  D)
  The order of colours is reversed in the secondary rainbow
  done clear
  View Answer play_arrow

• question_answer135) 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 clear
  B)
  68 cm
  done clear
  C)
  6.8 cm             
  done clear
  D)
    113.9 cm
  done clear
  View Answer play_arrow

• question_answer136) In which case change in entropy is negative? [NEET 5-5-2019]
  A)
  Sublimation of solid to gas
  done clear
  B)
  \[2H(g)\to {{H}_{2}}(g)\]
  done clear
  C)
  Evaporation of water
  done clear
  D)
  Expansion of a gas at temperature
  done clear
  View Answer play_arrow

• question_answer137) 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 clear
  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 clear
  View Answer play_arrow

• question_answer138) Which of the following diatomic molecular species has only \[\pi \] bonds according to Molecular Orbital Theory?                              [NEET 5-5-2019]
  A)
  \[{{C}_{2}}\]   
  done clear
  B)
  \[B{{e}_{2}}\]
  done clear
  C)
  \[{{O}_{2}}\]                           
  done clear
  D)
  \[{{N}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer139) 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 clear
  B)
  \[Sn{{F}_{4}}\]is ionic in nature
  done clear
  C)
  \[Pb{{F}_{4}}\]is covalent in nature
  done clear
  D)
  \[SiC{{l}_{4}}\]is easily hydrolysed
  done clear
  View Answer play_arrow

• question_answer140) 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 clear
  B)
  30 J
  done clear
  C)
  -30 J
  done clear
  D)
  5 Kj
  done clear
  View Answer play_arrow

• question_answer141) The compound that is most difficult to protonate is:                         [NEET 5-5-2019]
  A)
         
  done clear
  B)
  
  done clear
  C)
   
  done clear
  D)
  
  done clear
  View Answer play_arrow

• question_answer142) Which of the following is an amphoteric hydroxide?             [NEET 5-5-2019]
  A)
  \[Mg{{(OH)}_{2}}\]                  
  done clear
  B)
  \[Be{{(OH)}_{2}}\]
  done clear
  C)
  \[Sr{{(OH)}_{2}}\]                   
  done clear
  D)
  \[Ca{{(OH)}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer143) The correct structure of tribromooctaoxide is- [NEET 5-5-2019]
  A)
           
  done clear
  B)
  
  done clear
  C)
             
  done clear
  D)
  
  done clear
  View Answer play_arrow

• question_answer144) The biodegradable polymer is- [NEET 5-5-2019]
  A)
  nylon-6             
  done clear
  B)
  Buna-S
  done clear
  C)
  nylon-6, 6         
  done clear
  D)
  nylon 2-nylon 6
  done clear
  View Answer play_arrow

• question_answer145) Among the following, the reaction that proceeds through an electrophilic substitution, is- [NEET 5-5-2019]
  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
  View Answer play_arrow

• question_answer146) 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 clear
  B)
  [A] (iv) [B] (iii)   [C] (ii)   [D] (i)
  done clear
  C)
  [A] (i)    [B] (ii)   [C] (iii)   [D] (iv)
  done clear
  D)
  [A] (ii)   [B] (iv) [C] (i)    [D] (iii)
  done clear
  View Answer play_arrow

• question_answer147) 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 clear
  B)
  13 \[\sigma \] bonds and no \[\pi \] bond
  done clear
  C)
  10 \[\sigma \] bonds and 3 \[\pi \] bonds
  done clear
  D)
  8 \[\sigma \] bonds and 5\[\pi \] bonds
  done clear
  View Answer play_arrow

• question_answer148) 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 clear
  B)
  Sr
  done clear
  C)
  Be                               
  done clear
  D)
    Mg
  done clear
  View Answer play_arrow

• question_answer149) 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 clear
  B)
  \[PC{{l}_{5}}\] molecule is non-reactive
  done clear
  C)
  Three equatorial P-Cl bonds make an angle of \[120{}^\circ \] with each other
  done clear
  D)
  Two axial P-Cl bonds make an angle of \[180{}^\circ \]with each other
  done clear
  View Answer play_arrow

• question_answer150) 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 clear
  B)
  t = 2.303/k
  done clear
  C)
  t = 0.693/k                   
  done clear
  D)
  t = 6.909/k
  done clear
  View Answer play_arrow

• question_answer151) The most suitable reagent for the following conversion, is:                      [NEET 5-5-2019]
  A)
  \[Zn/HCl\]                     
  done clear
  B)
  \[H{{g}^{2+}}/{{H}^{+}},{{H}_{2}}O\]
  done clear
  C)
  \[Na/liquid\text{ }N{{H}_{3}}\]
  done clear
  D)
    \[{{H}_{2}},\text{ }Pd/C,quinoline\]
  done clear
  View Answer play_arrow

• question_answer152) 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 clear
  B)
  The \[\pi \]-bonding involves overlap of d-orbitals of oxygen with d-orbitals of manganese
  done clear
  C)
  The \[\pi \]-bonding involves overlap of p-orbitals of oxygen with d-orbitals of manganese
  done clear
  D)
  There is no \[\pi \]-bonding
  done clear
  View Answer play_arrow

• question_answer153) 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 clear
  B)
  \[1.0\times {{10}^{30}}\]
  done clear
  C)
  \[1.0\times {{10}^{2}}\]                      
  done clear
  D)
  \[1.0\times {{10}^{5}}\]
  done clear
  View Answer play_arrow

• question_answer154)                         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 clear
  B)
  \[0.5\times {{10}^{10}}\]
  done clear
  C)
  \[0.5\times {{10}^{15}}\]         
  done clear
  D)
  \[0.25\times {{10}^{10}}\]
  done clear
  View Answer play_arrow

• question_answer155) For an ideal solution, the correct option is- [NEET 5-5-2019]
  A)
  \[{{\Delta }_{mix}}\]H = 0 at constant T and P
  done clear
  B)
   \[{{\Delta }_{\min }}\]G = 0 at constant T and P
  done clear
  C)
  \[{{\Delta }_{mix}}\] S = 0 at constant T and P
  done clear
  D)
  \[{{\Delta }_{mix}}\] \[V\ne 0\]at constant T and P
  done clear
  View Answer play_arrow

• question_answer156) 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 clear
  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 clear
  View Answer play_arrow

• question_answer157) 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 clear
  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 clear
  View Answer play_arrow

• question_answer158) 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 clear
  View Answer play_arrow

• question_answer159) 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 clear
  View Answer play_arrow

• question_answer160) 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 clear
  View Answer play_arrow

• question_answer161) 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 clear
  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 clear
  View Answer play_arrow

• question_answer162) 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 clear
  B)
  40
  done clear
  C)
  10                                
  done clear
  D)
    20
  done clear
  View Answer play_arrow

• question_answer163) 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 clear
  B)
  Brackett series
  done clear
  C)
  Lyman series     
  done clear
  D)
  Balmer series
  done clear
  View Answer play_arrow

• question_answer164) 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 clear
  B)
  \[{{C}_{4}}{{A}_{3}}\]
  done clear
  C)
  \[{{C}_{2}}{{A}_{3}}\]                       
  done clear
  D)
  \[{{C}_{3}}{{A}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer165) The non-essential amino acid among the following is:                             [NEET 5-5-2019]
  A)
  Alanine
  done clear
  B)
  lysine
  done clear
  C)
  Valine              
  done clear
  D)
  leucine
  done clear
  View Answer play_arrow

• question_answer166) 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 clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
  View Answer play_arrow

• question_answer167) 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 clear
  View Answer play_arrow

• question_answer168) 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
  View Answer play_arrow

• question_answer169) Among the following, the one that is not a greenhouse gas is:                  [NEET 5-5-2019]
  A)
  Ozone              
  done clear
  B)
  sulphur dioxide
  done clear
  C)
  Nitrous oxide     
  done clear
  D)
  methane
  done clear
  View Answer play_arrow

• question_answer170) 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 clear
  B)
  (i) and (iv) only
  done clear
  C)
  (i) and (ii) only   
  done clear
  D)
  (i), (ii) and (iii)
  done clear
  View Answer play_arrow

• question_answer171) The structure of intermediate A in the following reaction, is:                    [NEET 5-5-2019]
  A)
    
  done clear
  B)
  
  done clear
  C)
   
  done clear
  D)
  
  done clear
  View Answer play_arrow

• question_answer172) The mixture that forms maximum boiling azeotrope is:                           [NEET 5-5-2019]
  A)
  Acetone + Carbon disulphide
  done clear
  B)
  Heptane + Octane
  done clear
  C)
  Water + Nitric acid
  done clear
  D)
  Ethanol + Water
  done clear
  View Answer play_arrow

• question_answer173) 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)
  \[{{e}^{3}}t_{2}^{3}\]                      
  done clear
  B)
  \[{{e}^{4}}t_{2}^{2}\]
  done clear
  C)
  \[t_{2g}^{4}e_{g}^{2}\]                    
  done clear
  D)
  \[t_{2g}^{6}e_{g}^{0}\]
  done clear
  View Answer play_arrow

• question_answer174) Conjugate base for Bronsted acids \[{{H}_{2}}O\]and HF are:                                      [NEET 5-5-2019]
  A)
  \[O{{H}^{}}\]and\[{{F}^{}}\], respectively
  done clear
  B)
  \[{{H}_{3}}{{O}^{+}}\]and\[{{H}_{2}}{{F}^{+}}\], respectively
  done clear
  C)
  \[O{{H}^{}}\]and\[{{H}_{2}}{{F}^{+}}\], respectively
  done clear
  D)
  \[{{H}_{3}}{{O}^{+}}\]and\[{{F}^{}}\], respectively
  done clear
  View Answer play_arrow

• question_answer175) Which will make basic buffer? [NEET 5-5-2019]
  A)
  \[100\text{ }mL\text{ }of\text{ }0.1\text{ }M\text{ }HCl+200\text{ }mL\text{ }of\text{ }\] \[0.1M\text{ }N{{H}_{4}}OH\]
  done clear
  B)
  \[100\text{ }mL\text{ }of\text{ }0.1\text{ }M\text{ }HCl+100\text{ }mL\text{ }of\text{ }\] \[0.1\text{ }M\text{ }NHOH\]
  done clear
  C)
  \[50\text{ }mL\text{ }of\text{ }0.1\text{ }M\text{ }NaOH+25\text{ }mL\text{ }of\] \[0.1\text{ }M\text{ }C{{H}_{3}}COOH\]
  done clear
  D)
  \[100\text{ }mL\text{ }of\text{ }0.1\text{ }M\text{ }C{{H}_{3}}COOH+100\] \[mL\text{ }of\text{ }0.1\text{ }M\text{ }NaOH\]
  done clear
  View Answer play_arrow

• question_answer176) 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        
  done clear
  B)
  5f > 6p > 4d > 5p
  done clear
  C)
  5f > 6p > 5p > 4d
  done clear
  D)
    6p > 5f > 5p > 4d
  done clear
  View Answer play_arrow

• question_answer177) Among the following, the narrow spectrum antibiotic is:                          [NEET 5-5-2019]
  A)
  amoxycillin                   
  done clear
  B)
  chloramphenicol
  done clear
  C)
  penicillin G        
  done clear
  D)
  ampicillin
  done clear
  View Answer play_arrow

• question_answer178) The major product of the following reaction is: [NEET 5-5-2019]
  A)
     
  done clear
  B)
  
  done clear
  C)
   
  done clear
  D)
  
  done clear
  View Answer play_arrow

• question_answer179) The method used to remove temporary hardness of water is:                   [NEET 5-5-2019]
  A)
  Ion-exchange method
  done clear
  B)
  Synthetic resins method
  done clear
  C)
  Calgon's method
  done clear
  D)
  clark's method
  done clear
  View Answer play_arrow

• question_answer180) Which one is malachite from the following? [NEET 5-5-2019]
  A)
  \[F{{e}_{3}}{{O}_{4}}\]         
  done clear
  B)
  \[CuC{{O}_{3}}\cdot Cu{{(OH)}_{2}}\]
  done clear
  C)
  \[CuFe{{S}_{2}}\]        
  done clear
  D)
  \[Cu{{(OH)}_{2}}\]
  done clear
  View Answer play_arrow