Intermolecular attraction is most effective in:
A)
Solids
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B)
Liquids
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C)
Gases
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D)
All of these
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E)
None of these
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Cell wall is:
A)
A membrane present in the nucleus
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B)
Mainly composed of cellulose
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C)
Responsible for all chemical activities in the cell
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D)
all of these
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E)
None of these
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e/m ratio of an electron is about _____ times that of proton.
A)
10
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B)
100
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C)
1000
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D)
2000
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E)
None of these
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A force of 0.6 N on an object increases its velocity from 5 m/s to 6 m/s in 2 seconds. Find the mass of the object.
A)
2 kg
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B)
1.2 kg
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C)
2.4 kg
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D)
3 kg
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E)
None of these
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In which one of the following cases negative work is done by a force applied on an object?
A)
When the angle between the direction of force and the direction of displacement is \[0{}^\circ \]
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B)
When the angle between the direction of force and the direction of displacement is \[30{}^\circ \]
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C)
When the angle between the direction of force and the direction of displacement is \[90{}^\circ \]
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D)
When the angle between the direction of force and the direction of displacement is \[180{}^\circ \]
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E)
None of these
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Silver revolution is related to the increase in the production of:
A)
Egg
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B)
milk
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C)
Meat
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D)
grains
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E)
None of these
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Two friends A and B started from the same location and went 30 km along a road in the same direction. When and where did B overtake A? The given figure shows their motions through graphs.
A)
At 11.20 am, at a point 30 km away from the starting point
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B)
At 10.20 am, at a point 20 km away from the starting point
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C)
At 11.20 am, at a point 25 km away from the starting point
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D)
At 10.30 am, at a point 25 km away from the starting point
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E)
None of these
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Which one of the following produces flowers?
A)
Angiosperms
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B)
Fungi
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C)
Ferns
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D)
Mosses
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E)
None of these
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If 220 g of salt is present in 500 g of solution, then calculate the concentration of the solution.
A)
20%
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B)
25%
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C)
40%
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D)
44%
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E)
None of these
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Which one of the following will show Tyndall Effect?
A)
Salt solution
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B)
Starch solution
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C)
Copper sulphate solution
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D)
Sugar solution
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E)
None of these
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Calculate the number of gram molecules present in 664 g of\[N{{a}_{2}}S{{O}_{4}}.10{{H}_{2}}O\].
A)
2.06
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B)
3.05
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C)
1.5
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D)
4.6
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E)
None of these
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Calculate the number of molecules of chloroform \[(CHC{{l}_{3}})\]weighing\[0.0239\,\,g\,\,(H=1,\,C=12,\,CL=35.5)\].
A)
\[0.2046\times {{10}^{17}}\]
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B)
\[1.2046\times {{10}^{20}}\]
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C)
\[2.2046\times {{10}^{22}}\]
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D)
\[3.1046\times {{10}^{21}}\]
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E)
None of these
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The latent heat of fusion of ice is:
A)
\[1.35\times {{10}^{5}}\,J/kg\]
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B)
\[2.35\times {{10}^{5}}\,J/kg\]
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C)
\[3.35\times {{10}^{5}}\,J/kg\]
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D)
\[4.35\times {{10}^{5}}\,J/kg\]
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E)
None of these
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If bromine atom is in the form of say two isotopes \[{}_{35}^{79}Br\,\,\,(49.7%)\,\,\,and\,\,{}_{35}^{81}Br\,\,\,\,(50.3%)\]then find out the atomic mass of bromine atom.
A)
80.006
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B)
76.023
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C)
81.210
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D)
85.235
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E)
None of these
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From the velocity-time graph given below, calculate the acceleration from A to B.
A)
\[3.15\text{ }m/{{s}^{2}}\]
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B)
\[8.33\text{ }m/{{s}^{2}}\]
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C)
\[5.17\text{ }m/{{s}^{2}}\]
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D)
\[6.18\text{ }m/{{s}^{2}}\]
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E)
None of these
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A car covers 30 km in 30 minutes and the next 30 km in 40 minutes. Calculate the average speed of the car for entire journey.
A)
40 km/h
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B)
46 km/h
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C)
64 km/h
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D)
80 km/h
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E)
None of these
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A ball of mass 10 g is initially moving with a velocity of\[50\text{ }m/s\]. On applying a constant force on the ball for 2 s, it acquires a velocity of\[70\text{ }m/s\]. Calculate the rate of change of momentum.
A)
\[0.1\text{ }kg\,\,m{{s}^{-2}}\]
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B)
\[\text{1}\text{.2 }kg\,\,m{{s}^{-2}}\]
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C)
\[2.1\text{ }kg\,\,m{{s}^{-2}}\]
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D)
\[3.2\,\,kg\,\,m{{s}^{-2}}\]
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E)
None of these
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What happens to the gravitational force between two objects, if the distance between the objects is tripled?
A)
One-fourth value of the initial value
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B)
One-third value of the initial value
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C)
One-fifth value of the initial value
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D)
One-ninth value of the initial value
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E)
None of these
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Annelids are:
A)
Flatworms
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B)
Roundworms
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C)
6-legged invertebrates
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D)
Segmented worms
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E)
None of these
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A person pulls a block on a horizontal surface by applying a force of 5N at an angle of \[30{}^\circ \]with the horizontal. Find the work done by this force in displacing the block through 2.0 m.
A)
\[4.2\,\,J\]
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B)
\[5\sqrt{3}\,\,J\]
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C)
\[6\sqrt{3}\,\,J\]
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D)
\[8\,\,J\]
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E)
None of these
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Which one of the following is a non-communicable disease?
A)
Malaria
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B)
Dengue
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C)
Rickets
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D)
Tuberculosis
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E)
None of these
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When we say 'sound travels in a medium, we mean:
A)
The particles of the medium travel
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B)
The source travels
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C)
The disturbance travels
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D)
The medium travels
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E)
None of these
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Secretion of enzymes, mucous and hormones is done by:
A)
Golgi apparatus
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B)
mitochondria
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C)
Plastids
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D)
ribosome
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E)
None of these
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The kingdom that includes unicellular eukaryotic organisms is:
A)
Monera
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B)
Protista
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C)
Plantae
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D)
Animalia
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E)
None of these
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Convert 20 g of water into moles.
A)
1.11 mole of water
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B)
2.19 mole of water
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C)
3.16 mole of water
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D)
4.21 mole of water
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E)
None of these
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A person listening to a tone of 500 Hz sitting at a distance of 450 m from the source of the sound. What is the time interval between successive compressions from the source?
A)
0.002 s
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B)
0.025 s
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C)
1.025 s
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D)
2.125 s
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E)
None of these
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The conversion of nitrate and nitrite salts to elemental nitrogen is called:
A)
Nitrification
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B)
Denitrification
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C)
Assimilation
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D)
Ammonification
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E)
None of these
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White rust is a disease that damages which one of the following crops?
A)
Wheat
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B)
Rice
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C)
Mustard
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D)
Sugar cane
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E)
None of these
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Suppose an astronaut lands on the moon and drops an object from a height of 7.35 m from the surface. How much time will it take to reach the moon's surface?
A)
1 s
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B)
2 s
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C)
3 s
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D)
4 s
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E)
None of these
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A construction worker's helmet slips and falls when he is 78.4 m above the ground. He hears the sound of the helmet hitting the ground 4.23 seconds after it slipped. Find the speed of sound in air.
A)
330 m/s
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B)
336m/s
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C)
339 m/s
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D)
341 m/s
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E)
None of these
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Cork cambium is an example of:
A)
Lateral meristem
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B)
primary meristem
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C)
Apical meristem
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D)
intercalary meristem
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E)
None of these
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Round worms causes which one of the following disease in human?
A)
Ascariasis
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B)
Malaria
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C)
Dengue
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D)
Yellow fever
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E)
None of these
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A force produces an acceleration of \[2\,\,m/{{s}^{2}}\]in a body A and \[5\,\,m/{{s}^{2}}\] in another body B. Find the ratio of the mass of A to the mass of B.
A)
1 : 2.5
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B)
1 : 2
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C)
1 : 3
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D)
5 : 2
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E)
None of these
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A pulse crop is grown in the time interval between two cereal crops to compensate the:
A)
Loss of phosphate
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B)
loss of water
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C)
Loss of sulphur
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D)
loss of nitrogen
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E)
None of these
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Which one of the following is found only in plant cell?
A)
Cell membrane
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B)
Mitochondria
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C)
Nucleus
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D)
Ribosome
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E)
None of these
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Which one of the following is not a heterogeneous mixture?
A)
Rock
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B)
Smoke
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C)
Muddy water
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D)
clean air
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E)
None of these
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Which one of the following is the electronic configuration of Krypton?
A)
2, 8, 14, 8
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B)
2, 8, 18, 8
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C)
2, 8, 8, 18
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D)
2, 18, 8, 8
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E)
None of these
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Which one of the following type of muscles are exclusively present in heart and work rapidly, rhythmically and tirelessly?
A)
Voluntary muscles
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B)
Striated muscles
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C)
Cardiac muscles
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D)
All of these
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E)
None of these
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The epithelium found in the lining layer of the stomach and intestine is:
A)
Columnar
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B)
squamous
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C)
Stratified
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D)
pseudo stratified
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E)
None of these
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Which one of the following is not a phylum?
A)
Platyhelminthes
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B)
Nematoda
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C)
Arthropoda
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D)
Mammalia
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E)
None of these
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