In which one of the following options matters are correctly arranged in order to increasing forces of attraction between their particles?
A)
Air < milk < nitrogen
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B)
Air < water < brick
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C)
Ice < water < vapour
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D)
Petrol < soil < air
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E)
None of these
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Body of which one of the following is asymmetrical?
A)
Amoeba
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B)
Starfish
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C)
Human
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D)
Lion
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E)
None of these
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Gases are compressible because:
A)
Intermolecular space between particles of gases is very large\
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B)
Intermolecular space between particles of gases is very less
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C)
Forces of attraction between particles of gases are very strong
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D)
Particles of gases are very small
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E)
None of these
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Which one of the following statements is incorrect about the characteristic of a suspension?
A)
A suspension is a heterogeneous mixture
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B)
Suspended particles are visible through the naked eye
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C)
A suspension is transparent
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D)
Suspension particles have a tendency to settle down under gravity
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E)
None of these
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Which of the following is a colloid?
A)
Smoke
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B)
Sea water
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C)
Sugar solution
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D)
Aspirin
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E)
None of these
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Dalton's atomic theory successfully explained:
A)
Law of conservation of mass
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B)
Law of constant composition
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C)
Law of multiple proportion
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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 statements is incorrect about the properties of anode rays?
A)
Anode rays consist of positively charged particles
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B)
Anode rays travels in straight lines
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C)
Anode rays expose photographic plate and films
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D)
Anode rays can produce mechanical effect
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E)
None of these
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The proteins and lipids, essential for building the cell membrane, are manufactured by:
A)
Mitochondria
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B)
Rough endoplasmic reticulum
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C)
Golgi apparatus
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D)
Vacuoles
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E)
None of these
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The inner membrane of mitochondria forms crests called:
A)
Matrix
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B)
Cristae
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C)
Vesicles
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D)
Cisternae
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E)
None of these
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Which one of the following statements is incorrect?
A)
Parenchyma cells store food materials in the form of proteins, starch, oil and fats
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B)
Collenchyma provides elasticity to the plant organs
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C)
Sclerenchyma provides mechanical strength to the plant
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D)
The husk of coconut is made up of sclerenchyma tissues
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E)
None of these
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The bone cells are called:
A)
Leucocytes
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B)
Osteocytes
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C)
Basophils
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D)
Chondrocytes
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E)
None of these
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Leech belongs to which of the following phyla?
A)
Annelida
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B)
Arthropoda
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C)
Mollusca
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D)
Echinodermata
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E)
None of these
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Virus which cause hepatitis, are transmitted through:
A)
Air
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B)
Food
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C)
Water
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D)
Personal contact
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E)
None of these
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If there is no atmosphere around the earth, the temperature of the earth will:
A)
Go on increasing
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B)
Go on decreasing
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C)
Increase during the day and decrease during the night
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D)
Be unaffected
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E)
None of these
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Cattle husbandry is done for which purposes? (i) Milk production (ii) Agricultural work (iii) Meat production (iv) Egg production
A)
(i), (ii) and (iv)
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B)
(ii) and (iv)
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C)
(i), (ii) and (iii)
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D)
(ii), (iii) and (iv)
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E)
None of these
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Arthritis is which of the following kind of disease?
A)
An acute disease
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B)
A chronic disease
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C)
An infectious disease
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D)
A communicable disease
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E)
None of these
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Which one of the following statements is incorrect?
A)
The velocity of a body can change even if its acceleration is zero
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B)
The displacement of a body has the same direction as that of its average velocity
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C)
The direction of acceleration due to gravity is always vertically downward
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D)
Motion of an ant on a floor along the edges is an example of translatory motion
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E)
None of these
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A body is stationary, then:
A)
There is no force acting on it
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B)
The body is in vacuum
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C)
The net forces acting on it balances each other
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D)
The force acting on it is not in contact with it
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E)
None of these
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Which one of the following statements is incorrect about the pitch of a sound?
A)
Pitch of a sound depends upon the frequency of a vibrating object
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B)
Higher frequency produces shrill sound and lower frequency produces bass or flat sound
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C)
Small lengths of vibrating air columns produce high pitched sound and vice-versa
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D)
Pitch of sound decreases with the decrease in thickness or the length of vibrating wires
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E)
None of these
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Which of the following has the maximum number of atoms?
A)
\[20\,g\,of\,{{H}_{2}}O\]
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B)
\[20\,g\,of\,C{{H}_{4}}\]
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C)
\[20\,g\,of\,{{O}_{2}}\]
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D)
\[20\,g\,of\,C{{O}_{2}}\]
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E)
None of these
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Calculate the number of moles for 1 atom of silver.
A)
1 mole
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B)
\[6.022\times {{10}^{23}}mole\]
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C)
\[1.66\times {{10}^{-24}}mole\]
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D)
\[1.66\times {{10}^{-34}}mole\]
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E)
None of these
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Which one of the following is the correct chemical formula for potassium dichromate?
A)
\[{{K}_{2}}Cr{{O}_{7}}\]
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B)
\[{{K}_{2}}Cr{{O}_{5}}\]
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C)
\[{{K}_{2}}C{{r}_{2}}{{O}_{5}}\]
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D)
\[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]
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E)
None of these
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Two particles are placed at some distance. If mass of each of the two particles is doubled, keeping the distance between them unchanged, the value of gravitational force between them will be:
A)
Unchanged
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B)
4 times
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C)
\[~\frac{1}{4}times\]
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D)
\[~\frac{1}{2}times\]
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E)
None of these
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A ball takes t seconds to fall from a height \[{{h}_{1}}\]and 2t seconds to fall from height\[{{h}_{2}}\]. The ratio of \[{{h}_{1}}\,and\,{{h}_{2}}\] is:
A)
1 : 2
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B)
1 : 3
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C)
1 : 4
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D)
1 : 8
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E)
None of these
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Calculate the mass of 1 molecule of ammonia.
A)
\[2.823\times {{10}^{-23}}g\]
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B)
\[6.823\times {{10}^{-23}}g\]
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C)
\[2.823\times {{10}^{23}}g\]
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D)
\[1.823\times {{10}^{-30}}g\]
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E)
None of these
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Calculate the force of gravitation due to earth on a ball of mass 60 kg. (Mass of earth = \[6\times {{10}^{24}}kg\] and radius of earth = \[6.4\times {{10}^{3}}km\])
A)
588.8 N
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B)
512.2 N
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C)
632.6 N
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D)
724.5 N
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E)
None of these
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Velocity-time graph of a ball of mass 50 g rolling on a concrete floor is shown in the following figure. Calculate the acceleration and frictional force of the floor on the ball.
A)
\[-5m/{{s}^{-2}},0.5\,N\]
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B)
\[-10m/{{s}^{-2}},0.5\,N\]
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C)
\[-0.5m/{{s}^{-2}},10\,N\]
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D)
\[-10m/{{s}^{-2}},10\,N\]
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E)
None of these
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A body is falling from height h. After it has fallen a height h/2, it will possess:
A)
Only potential energy
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B)
Only kinetic energy
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C)
Half potential and half kinetic energy
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D)
Less potential and more kinetic energy
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E)
None of these
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A car at rest has mass 1000 kg. It is moved by a horizontal force of 50 N on a horizontal surface. Calculate the work done by the force in 8 s.
A)
40 J
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B)
60 J
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C)
80 J
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D)
120 J
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E)
None of these
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A man standing 50 m away from a high wall fires a gun. Calculate the time after which an echo is heard, (take speed of sound in air is 320 m/s).
A)
2 s
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B)
3.2 s
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C)
0.3125 s
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D)
0.1
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E)
None of these
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'Bhutan' and 'Archery' are related in a particular way. Find the option that has similar relationship.
A)
China and Table tennis
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B)
India and Badminton
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C)
Japan and Cricket
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D)
Russia and Hockey
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E)
None of these
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If \[P\times Q\] means P is the father of Q, \[P-Q\] means P is the sister of Q, \[P+Q\] means P is the mother of Q and \[P\div Q\] means P is the brother of Q, Which one of the following represents J is son of F?
A)
\[J\div R-T\times F\]
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B)
\[J+R-T\times F\]
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C)
\[J\div M-N\times F\]
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D)
\[J-R-T\times F\]
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E)
None of these
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I am facing south. I turn right and walk 20 m. Then I turn right again and walk 10 m. Then I turn left and walk 10 m and then turning right walk 20 m. Then I turn right again and walk 60 m. In which direction am I from the starting point?
A)
North
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B)
North-West
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C)
East
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D)
North-East
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E)
None of these
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If 'LEFNES' is coded as 'NCHLGQ', then 'DLTIMEQ' will be coded as........
A)
FJVLOG
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B)
FJLVGO
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C)
FJVLGO
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D)
FVJLGO
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E)
None of these
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Which term will replace the question mark in the following series? D2, 13, N6, S18, ?
A)
V72
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B)
W36
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C)
Y90
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D)
X108
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E)
None of these
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If P denotes\[\div \], Q denotes\[\times \], R denotes \[+\] and S denotes\[-\], then 18Q12P4R5S6 =?
A)
46
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B)
53
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C)
64
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D)
75
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E)
None of these
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If
means '\[\times \]',
means '\[+\]',
means '\[\div \]', '>' means '\[=\]', '<' means\[\ne \],
means '>' and
means '<', then which one of the following equations is correct?
A)
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B)
done
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C)
done
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D)
done
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E)
None of these
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Direction for 38 and 39: Read the following information carefully and answer the questions. (i) A, B, C, D, E, F and G are sitting around a circle and are facing the centre. (ii) G is seconds to the left of C, who is to the immediate left of F. (iii) A is third to the left of E. (iv) B is between D and E.
Which one of the following is false?
A)
A is fourth to the right of E.
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B)
G is to the immediate right of D.
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C)
F is third to the right of D.
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D)
B is second to the left of G.
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E)
None of these
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Direction for 38 and 39: Read the following information carefully and answer the questions. (i) A, B, C, D, E, F and G are sitting around a circle and are facing the centre. (ii) G is seconds to the left of C, who is to the immediate left of F. (iii) A is third to the left of E. (iv) B is between D and E.
Which one of the following is true?
A)
C is fourth to the left of B.
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B)
A is to the immediate right of G.
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C)
D is second to the left of E.
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D)
B is second to the right of G.
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E)
None of these
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There are 36 students in a class. The number of boys is twice of the number of girls. There are 13 boys ahead of Sarita who ranked 19th in the class. How many girls are behind Sarita?
A)
5
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B)
6
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C)
11
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D)
12
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E)
None of these
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Look at the following table.
Species \[{{H}_{2}}O\] Na atom \[MgC{{l}_{2}}\] Property No. of moles 2 A 0.5 No. of particles B C D Mass 36g 115g E
Which of the following options is correct for A, B, C, D and E?
A)
\[A=5,\,\,B=0.2044\times {{10}^{24}},\,\,C=3.011\times {{10}^{24}}\], \[D=3.011\times {{10}^{23}},\,\,E=32.5g\]
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B)
\[A=5,\,\,B=1.2044\times {{10}^{24}},\,\,C=5.011\times {{10}^{24}}\], \[D=1.011\times {{10}^{23}},\,\,E=33.5g\]
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C)
\[A=9,\,\,B=1.2044\times {{10}^{24}},\,\,C=3.011\times {{10}^{24}}\], \[D=6.011\times {{10}^{23}},\,\,E=47.5g\]
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D)
\[A=5,\,\,B=1.2044\times {{10}^{24}},\,C=3.011\times {{10}^{24}}\], \[D=3.011\times {{10}^{23}},\,\,E=47.5g\]
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E)
None of these
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Molecular formula is incorrect of which of the following compounds? (i) Copper (II) bromide \[\to CuB{{r}_{2}}\] (ii) Aluminum (III) nitrate \[\to Al{{(N{{O}_{3}})}_{2}}\] (iii) Calcium (II) phosphate \[\to C{{a}_{3}}{{(P{{O}_{2}})}_{4}}\] (iv) Iron (III) sulphide \[\to Fe{{S}_{3}}\] (v) Mercury (II) chloride \[\to HgC{{l}_{2}}\] (vi) Magnesium (II) acetate \[\to Mg{{(C{{H}_{3}}COO)}_{2}}\]
A)
(i), (v), (vi)
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B)
(ii), (iii), (iv)
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C)
(i), (ii), (vi)
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D)
(ii), (iv), (vi).
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E)
None of these
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It is given that e/m for electron is 2000 times the value for proton (\[{{H}^{+}}\]). Calculate the charge to mass ratio for \[H{{e}^{2+}}\] in comparison to e/m of electron, when the mass of He is four times the mass of hydrogen.
A)
e/m for electron is 1000 times than that for \[H{{e}^{2+}}\]
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B)
e/m for electron is 2000 times than that for \[H{{e}^{2+}}\]
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C)
e/m for electron is 3000 times than that for \[H{{e}^{2+}}\]
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D)
e/m for electron is 4000 times than that for \[H{{e}^{2+}}\]
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E)
None of these
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Organisms without nucleus and cell organelles belong to (i) Fungi (ii) Protista (iii) Cyano bacteria (iv) archae bacteria
A)
(i) and (ii)
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B)
(iii) and (iv)
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C)
(i) and (iv)
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D)
(ii) and (iii)
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E)
None of these
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Find the correct sentences. (i) Hybridization means crossing between genetically dissimilar plants. (ii) Cross between two varieties is called as inter specific hybridization. (iii) Introducing genes of desired character into a plant gives genetically modified crop. (iv) Cross between plants of two species is called as inter varietal hybridization.
A)
(i) and (iii)
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B)
(ii) and (iv)
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C)
(ii) and (iii)
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D)
(iii) and (iv)
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E)
None of these
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A boy pulls a toy car with a force of 5 N by a string which makes an angle of \[30{}^\circ \] with the horizontal, in order to move the toy by the distance of 2m in horizontal direction. If the string were inclined at an angle of \[60{}^\circ \]with horizontal, how much pull would be applied along the string to move it through the same distance of 2 m?
A)
6.12 N
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B)
5 N
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C)
8.6 N
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D)
3.5 N
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E)
None of these
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Read the following statements. (i) In transverse waves, the particles of the medium vibrate at right angles to the direction of wave. (ii) Transverse waves consist of crests and troughs. (iii) Transverse waves can propagate through all types of media. (iv) In transverse waves, the distance between the two consecutive crests or between the two consecutive troughs is equal to one wavelength. Choose the correct statements.
A)
(i), (ii) and (iii)
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B)
(i), (iii) and (iv)
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C)
(i), (ii) and (iv)
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D)
(ii), (iii) and (iv)
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E)
None of these
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Match the following.
(A) naked seed (I) angiosperms (B) covered seed (II) gymnosperms (C) flagella (III) bryophytes (D) marchantia (IV) Euglena (E) cladophora (V) thallophyta (F) penicillium (VI) Fungi
A)
A - II, B - I, C - IV, D - III, E - VI, F - V
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B)
A - I, B - II, C - IV, D - III, E - VI, F - V
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C)
A - II, B - I, C - III, D - IV, E - VI, F - V
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D)
A - II, B - I, C - IV, D - III, E - V, F ? VI
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E)
None of these
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A ball gently dropped from a height of 20 m. If its velocity increases uniformly at the rate of\[10\,m/{{s}^{2}}\], after what time will it strike the ground?
A)
0.1 s
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B)
0.5 s
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C)
1 s
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D)
5 s
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E)
None of these
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Read the following statements about the kingdom fungi. (i) They have a definite cell wall made up of tough sugar called chitin. (ii) They are without chlorophyll, hence they are called heterotrophic. (iii) They are usually non-motile. (iv) They reproduce mostly by spore formation however sexual reproduction may also take place. Which of the above statements is/are correct?
A)
Only (i) and (ii)
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B)
Only (ii) and (iii)
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C)
Only (i), (ii) and (iv)
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D)
All (i), (ii), (iii) and (iv)
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E)
None of these
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