Which one of the following statements is not correct about solid?
A)
Solids have fixed shape
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B)
Solids have fixed volume
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C)
Solids can flow
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D)
Solids have high densities
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E)
None of these
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One molecule of carbon dioxide is made of:
A)
One atom of carbon and one atom of oxygen
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B)
Two atoms of carbon and two atoms of oxygen
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C)
One atom of carbon and two atoms of oxygen
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D)
Two atoms of carbon and one atom of oxygen
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E)
None of these
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What is the atomic number of potassium?
A)
17
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B)
18
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C)
19
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D)
20
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E)
None of these
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What is the S.I. unit of acceleration?
A)
\[m/min~\]
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B)
\[m/g\]
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C)
\[m/s~\]
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D)
\[m/{{s}^{2}}\]
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E)
None of these
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An atom of an element contains 6 protons and 8 neutrons. What should be its atomic number?
A)
14
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B)
6
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C)
8
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D)
2
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E)
None of these
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Which of the following elements is anon metal?
A)
Sodium
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B)
Potassium
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C)
Carbon
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D)
Calcium
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E)
None of these
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Match the following:
1.
Metals
(A)
Copper
2.
Compound
(B)
Silicon
3.
Metalloid
(C)
Water
A)
1-B, 2-C, 3-A
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B)
1-A, 2-C, 3-B
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C)
1-A, 2-B, 3-C
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D)
1-C, 2-A, 3-B
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E)
None of these
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Which one of the following statements is correct? Statement 1: If temperature of a solid substance is increased, the force of attraction between its molecules will also increase. Statement 2: If temperature of a solid substance is increased, the force of attraction between its molecules will decrease.
A)
Statement 1
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B)
Statement 2
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C)
Both statements are correct
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D)
Both statements are incorrect
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E)
None of these
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Which one of the following formula is correct for impulse?
A)
\[Impulse\text{ }=\text{ }force\text{ }\times \text{ }time\]
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B)
\[Impulse\text{ }=\text{ }force\text{ }\times \text{ }distance\]
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C)
\[Impulse\text{ }=\text{ }force\text{ }\times \text{ }acceleration\]
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D)
\[Impulse\text{ }=\text{ }force\text{ }\times \text{ }work\]
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E)
None of these
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Which of the following statements is incorrect about the metals?
A)
They are poor conductors of electricity
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B)
They are ductile
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C)
They are malleable
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D)
All of these
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E)
None of these
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What is the molecular mass \[{{C}_{2}}{{H}_{6}}\]?
A)
12 u
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B)
30 u
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C)
36 u
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D)
56 u
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E)
None of these
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The first energy level or shell in the structure of an atom is represented by which one of the following letters?
A)
K
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B)
L
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C)
M
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D)
N
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E)
None of these
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Which one of the following statements is correct? Statement 1: Cell wall is not present in animal cells. Statement 2: Cell wall is present in plant cells.
A)
Statement 1
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B)
Statement 2
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C)
Both statements are correct
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D)
Both statements are incorrect
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E)
None of these
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Which one of the following cell organelles is responsible for the synthesis of protein?
A)
Ribosomes
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B)
Centriole
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C)
Lysosomes
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D)
Vacuoles
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E)
None of these
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Which one of the following is a type of meristematic tissue?
A)
Xylem
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B)
Parenchyma
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C)
Collenchyma
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D)
Apical meristem
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E)
None of these
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What is the scientific name of man?
A)
Homo sapiens
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B)
Rana tigrina
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C)
Triticum aestivum
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D)
Solanum tuberosum
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E)
None of these
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Spiders belongs to which one of the following phyla?
A)
Annelida
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B)
Arthropoda
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C)
Nematoda
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D)
Platyhelminthes
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E)
None of these
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Speed of a car is \[25\text{ }m/s\]. How long will it take to cover the distance of 90 km?
A)
1 hour
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B)
2 hours
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C)
3 hours
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D)
4 hours
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E)
None of these
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A car accelerates uniformly from\[5m{{s}^{-1}}\text{ }to\text{ }20m{{s}^{-1}}\text{ }in\text{ }15\,s\]. Calculate the acceleration.
A)
\[1\,\,m{{s}^{-2}}\]
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B)
\[10\,\,m{{s}^{-2}}\]
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C)
\[2\,\,m{{s}^{-2}}\]
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D)
\[5\,\,m{{s}^{-2}}\]
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E)
None of these
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What force would be needed to produce an acceleration of \[6\text{ }m/{{s}^{2}}\]in a ball of mass 6 kg?
A)
12 N
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B)
24 N
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C)
36 N
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D)
48 N
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E)
None of these
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The maximum number of electrons that can be accommodated in the third cell is:
A)
2
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B)
8
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C)
18
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D)
32
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E)
None of these
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Look at the following time-distance graph. Which object is moving with maximum speed?
A)
Object A
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B)
Object B
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C)
Object C
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D)
All are moving with equal speed
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E)
None of these
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Which of the following pairs represents an isotopes?
A)
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B)
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C)
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D)
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E)
None of these
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Find the kinetic energy of a ball of mass 20 kg moving at a speed of\[20\text{ }m/s\].
A)
2000 J
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B)
4000 J
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C)
6000 J
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D)
8000 J
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E)
None of these
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One horsepower is equal to:
A)
232 W
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B)
746 W
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C)
872 W
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D)
1000 W
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E)
None of these
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The frequency of a sound wave is 100 Hz. What is its time period?
A)
0.1 second
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B)
0.01 second
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C)
0.001 second
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D)
1 second
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E)
None of these
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A sound wave is travelling in the air with the speed of\[340\text{ }m/s\]. If frequency of the sound wave is 500 hertz, than find its wavelength.
A)
0.68 m
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B)
0.70 m
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C)
0.72 m
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D)
0.74 m
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E)
None of these
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Typhoid is caused by which one of the following micro-organisms?
A)
Virus
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B)
Bacteria
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C)
Protozoa
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D)
Fungi
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E)
None of these
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Which one of the following tissues has lignified cells?
A)
Chlorenchyma
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B)
Sclerenchyma
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C)
Parenchyma
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D)
Collenchyma
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E)
None of these
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Which of the following represents the correct formula of ozone?
A)
\[Ozn\]
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B)
\[{{O}_{2}}Zn\]
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C)
\[{{O}_{3}}Zn\]
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D)
\[{{O}_{3}}\]
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E)
None of these
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Which one of the following animals has three chambered heart?
A)
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B)
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C)
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D)
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E)
None of these
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Calculate the number of oxygen atoms present in 44 g of\[C{{O}_{2}}\].
A)
\[1.2046\text{ }\times \text{ }{{10}^{24}}\]
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B)
\[2.2046\text{ }\times \text{ }{{10}^{24}}\]
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C)
\[1.2046\text{ }\times \text{ }{{10}^{22}}\]
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D)
\[6.2046\text{ }\times \text{ }{{10}^{24}}\]
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E)
None of these
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Which of the following statements are correct? Statement 1: In mixed cropping, seeds of two crops mixed before sowing. Statement 2: In intercropping, seeds of two crops are mixed before sowing.
A)
Statement 1
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B)
Statement 2
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C)
Both statements are correct
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D)
Both statements are incorrect
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E)
None of these
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Which one of the following is correct about the relative density of a substance?
A)
Relative density of a substance = density of the substance/density of air
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B)
Relative density of a substance = density of air/density of the substance
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C)
Relative density of a substance = density of the substance/density of water
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D)
Relative density of substance = density of water/density of the substance
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E)
None of these
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A block of mass 1 kg slides down on an inclined plane of inclination \[30{}^\circ \]as shown in the given figure. Find the work done by the block's weight as it slides through 50 cm.
A)
1.5 J
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B)
2.45 J
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C)
3.6 J
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D)
4.8 J
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E)
None of these
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Identify the cell organelle which has been shown in the given picture?
A)
Plastids
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B)
Mitochondria
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C)
Vacuoles
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D)
Lysosomes
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E)
None of these
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A body does 60 joules of work in 12 seconds. What is its power?
A)
6 W
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B)
5 W
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C)
4 W
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D)
3 W
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E)
None of these
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Which of the following is the correct electronic configuration of the krypton gas?
A)
2, 8, 18, 8
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B)
2, 8, 2, 8, 18, 8, 8
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C)
2, 8, 18, 18, 8
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D)
2, 8, 18, 8, 18
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E)
None of these
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Binomial nomenclature was introduced by:
A)
Walter G. Rosen
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B)
Carl Linnaeus
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C)
Ercst Mayr
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D)
John Ray
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E)
None of these
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How many grams of neon will have the same number of atoms as 24 grams of calcium?
A)
4 g
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B)
10 g
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C)
24 g
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D)
12 g
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E)
None of these
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