A stone is allowed to fall from the top of a tower 100 m high and at the same time another stone is projected vertically upwards from the ground with the velocity of\[25\text{ }m/s\]. Calculate when and where the two stones meet. \[\left( Take\text{ }g=10\text{ }m/{{s}^{2}} \right)\]
A)
After 12 seconds from start and at the height of 50 m.
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B)
After 5 seconds from start and at the height of 10 m.
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C)
After 8 seconds from start and at the height of 10 m.
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D)
After 4 seconds from start and at the height of 20 m.
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E)
None of these
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Which one of the following is the type of plastids?
A)
Chloroplasts
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B)
Leucoplasts
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C)
Chromoplast
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D)
All of these
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E)
None of these
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Match the following:
1 Element A Sulphur in carbon disulfide 2 Homogenous mixture B Oxygen 3 Compound C Water in oil 4 Heterogeneous mixture D Water
A)
1 - B, 2 - C, 3 - D, 4 - A
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B)
1 - B, 2 - A, 3 - D, 4 - C
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C)
1 - C, 2 - A, 3 - D, 4 - B
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D)
1 - B, 2 - D, 3 - A, 4 - C
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E)
None of these
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According to the Dalton's atomic theory all matter is made up of tiny particles called:
A)
Molecule
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B)
Mole
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C)
Atom
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D)
Element
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E)
None of these
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Earthworm is the example of ______ phylum of kingdom animalia.
A)
Echinodermata
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B)
Nematoda
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C)
Arthropoda
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D)
Annelida
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E)
None of these
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Arrange the following in the decreasing order of masses: one atom of gold, one gram atom of nitrogen, one mole of calcium, one gram of iron.
A)
Gold > nitrogen > iron > calcium.
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B)
Calcium > iron > nitrogen > gold.
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C)
Nitrogen > Calcium > iron > gold.
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D)
Calcium > nitrogen > iron > gold.
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E)
None of these
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Define relation between Newton and Dyne.
A)
\[1\,\,N={{10}^{3}}\,dyne\]
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B)
\[1\,\,N={{10}^{5}}\,dyne\]
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C)
\[1\,\,N={{10}^{4}}\,dyne\]
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D)
\[1\,\,N={{10}^{6}}\,dyne\]
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E)
None of these
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Match the following:
1. Sulphur (A) Monoatomic 2. Nitrogen (B) Triatomic 3. Water (C) Polyatomic 4. Helium (D) Diatomic
A)
1 - C, 2 - A, 3 - D, 4 - B
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B)
1 - B, 2 - D, 3 - A, 4 - C
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C)
1 - C, 2 - D, 3 - B, 4 - A
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D)
1 - C, 2 - B, 3 - A, 4 - D
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E)
None of these
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Which one of the following is called degenerative diseases?
A)
Osteoporosis
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B)
Kidney failure
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C)
Myopia
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D)
All of these
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E)
None of these
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Which one of the following is/are bounded by double membrane?
A)
Nucleus
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B)
Mitochondria
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C)
Plastids
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D)
All of these
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E)
None of these
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Which one of the following is the correct electronic configuration of the xenon gas?
A)
2, 8, 18, 10, 8, 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 von Linnaeus
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C)
Ernst Mayr
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D)
John Ray
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E)
None of these
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A racing car has a uniform acceleration of\[5\text{ }m/{{s}^{2}}\]. What distance will it cover in 20s after starting from the rest?
A)
1 km
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B)
8 km
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C)
2 km
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D)
18 km
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E)
None of these
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Which one of the following is a vector quantity?
A)
Speed
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B)
Distance
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C)
Displacement
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D)
All of these
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E)
None of these
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Which one of the following vaccine protects against the tuberculosis?
A)
BCG
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B)
TT
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C)
DPT
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D)
DT
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E)
None of these
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Alexander: The diseases which last for very short periods of time are called acute diseases. Abraham: The diseases that last for a long time, even as much as a lifetime, are called chronic diseases. Who is correct?
A)
Alexander
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B)
Abraham
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C)
Both are correct
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D)
both are incorrect
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E)
None of these
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Which one of the following is correct about the comparison of mass of a proton and mass of an electron?
A)
Mass of a proton is 200 times that of an electron.
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B)
Mass of a proton is 1837 times that of an electron.
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C)
Mass of a proton is 3000 times that of an electron.
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D)
All of these
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E)
None of these
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A motor car is travelling at 36 km/h. After 10 s, the velocity becomes 54 km/h. assuming the velocity change took place at a uniform rate, find the acceleration.
A)
\[5\text{ }m/{{s}^{2}}\]
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B)
\[\text{3 }m/{{s}^{2}}\]
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C)
\[\text{1}\text{.6 }m/{{s}^{2}}\]
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D)
\[\text{0}\text{.5 }m/{{s}^{2}}\]
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E)
None of these
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A body of mass 20 kg is moving along a straight path with velocity\[10\text{ }m/s\]. Find the kinetic energy of the body.
A)
2 kJ
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B)
4 kJ
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C)
1 kJ
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D)
10 kJ
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E)
None of these
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Which one of the following is the mass of a neutron?
A)
\[1.673\times {{10}^{-24}}\text{ }g\]
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B)
\[20.673\times {{10}^{-24}}\text{ }g\]
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C)
\[1.673\times {{10}^{-28}}\text{ }g\]
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D)
12 g
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E)
None of these
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Husk of coconut is made of_______ tissues.
A)
Parenchyma
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B)
Collenchyma
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C)
Sclerenchymatous
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D)
Xylem
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E)
None of these
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Cork floats in water because the density of the cork is _____ than that of water.
A)
Greater
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B)
Equal
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C)
Less
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D)
Very greater
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E)
None of these
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Which one of the following is a nerve cell?
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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Which one of the following tissues carry water and mineral salts upward from the root to different parts of shoots?
A)
Phloem
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B)
Xylem
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C)
Collenchyma
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D)
Epithelium
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E)
None of these
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What will be the weight of an object on the surface of the moon, if the weight of that object on the earth is 60 N?
A)
6 N
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B)
10 N
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C)
60 N
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D)
600 N
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E)
None of these
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Which one of the following radioactive isotopes is used to detect the presence of blood clots?
A)
Arsenic - 74
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B)
Cobalt - 60
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C)
Iodine - 131
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D)
Sodium - 24
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E)
None of these
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Which cell organelle is not bounded by a membrane?
A)
Lysosome
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B)
Peroxisomes
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C)
Mitochondria
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D)
Centrosome
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E)
None of these
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Which one of the following has more inertia than the others?
A)
A rubber ball
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B)
An iron ball
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C)
A train
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D)
All of these
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E)
None of these
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Which one of the following is an example of water based ecosystem?
A)
Grassland
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B)
Forest
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C)
Desert
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D)
Pond
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E)
None of these
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Evaporation is an _________ process.
A)
Endothermic
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B)
Exothermic
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C)
Liquidification
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D)
All of these
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E)
None of these
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When 50 g of sugar is dissolved in 200 ml of water, there is no increase in the volume. What characteristic of matter is illustrated by this observation?
A)
Particles of matter are continuously moving.
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B)
Particles of matter attract each other.
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C)
Particles of matter have space between them.
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D)
All of these
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E)
None of these
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What is the name of the instrument shown in the figure given below?
A)
Cathode ray oscilloscope
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B)
Robert Hook Microscope
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C)
Musical Instrument
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D)
Electron Microscope
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E)
None of these
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Aves are:
A)
Viviparous
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B)
Oviparous
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C)
Optiparous
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D)
Oxiparous
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E)
None of these
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Certain mass of carbon burns with a given mass of oxygen to form certain mass of carbon dioxide. Which law of chemical combination is used in this process of formation of compound?
A)
Laws of constant proportion
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B)
Laws of multiple proportion
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C)
Laws of conservation of mass
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D)
Gay Lussac's law
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E)
None of these
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What is the atomic number of aluminium?
A)
12
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B)
13
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C)
14
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D)
15
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E)
None of these
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How to decrease the intermolecular force of attraction between liquid molecules?
A)
Storage of liquid at low temperature.
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B)
Heating a liquid.
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C)
Storage of liquid at room temperature.
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D)
All of these
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E)
None of these
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Seed contains a food laden tissue, is called _______ for future growth of embryo.
A)
Endosperm
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B)
Megasporophylls
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C)
Gnetum
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D)
All of these
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E)
None of these
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Which one of the following is correct about the impulse of a force?
A)
\[Impulse=Force\times Time\]
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B)
\[Impulse=\frac{Force}{Time}\]
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C)
\[Impulse=Force-Time\]
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D)
Oxiparous
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E)
None of these
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If a man jumps out from a boat, the boat moves:
A)
Forwards
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B)
Sidewards
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C)
Backwards
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D)
Downwards
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E)
None of these
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Which one of the following is correct molecular formula of ammonium chloride?
A)
\[N{{H}_{4}}Cl\]
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B)
\[N{{H}_{3}}Cl\]
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C)
\[N{{H}_{2}}Cl\]
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D)
\[NHCl\]
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E)
None of these
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