Q:

Atmospheric pressure exerted on earth is due to

A) gravitational pull	B) rotation of earth
C) revolution of earth	D) uneven heating of earth

Answer & Explanation Answer: A) gravitational pull

Explanation:

The atmospheric pressure at the surface of the Earth is due to gravitational pull of the earth and is about 14.7 psi.

That means that the weight of a column of air which has a cross section of 1 square inch and which stretches from the surface of the Earth to space is 14.7 pounds.

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7 9167

Q:

During Akbar's reign the most common gold coin was Illahi, which in value was equal to

A) 10 rupee silver coins	B) 12 rupee silver coins
C) 15 rupee silver coins	D) 20 rupee silver coins

Answer & Explanation Answer: A) 10 rupee silver coins

Explanation:

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Filed Under: Indian History

10 9167

Q:

Select the synonym of

to recline

A) to lounge	B) to rewind
C) to sheer	D) to plump

Answer & Explanation Answer: A) to lounge

Explanation:

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Q:

Which one of the following mixture is homogeneous?

A) Water and oil	B) Starch and sugar crystals
C) Graphite and charcoal	D) Alloys

Answer & Explanation Answer: D) Alloys

Explanation:

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Q:

A ball is thrown vertically upwards. Assuming the air resistance to be constant and cosiderable:

A) the time of ascent < the time of descent	B) the time of ascent > the time of descent
C) the time of ascent = the time of descent	D) none of these

Answer & Explanation Answer: A) the time of ascent < the time of descent

Explanation:

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42 9161

Q:

The Tripitaka was written in

A) Brahmi	B) Kharosthi
C) Pali	D) Sanskrit

Answer & Explanation Answer: C) Pali

Explanation:

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Filed Under: Indian History

12 9160

Q:

Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to prevent it from freezing at –6°C will be: (Kf for water = 1.86 Kg/mol and molar mass of ethylene glycol = 62 kg/mol)

A) 204.60 g	B) 304.30 g
C) 804.32 g	D) 400.00 g

Answer & Explanation Answer: C) 804.32 g

Explanation:

$∆ T_{f} = k_{f} . m$

for ethylene glycol in aq. solution

$∆ T_{f} = k_{f} \frac{w}{m o l . w t} \times \frac{1000}{w t . o f s o l v e n t} 6 = \frac{1.86 x w x 1000}{62 x 4000}$

=> w = 800 g

So, the weight of solute should be more than 800 g.

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Q:

Amrita Pritam's work " A Revenue Stamp" is

A) A book of stories	B) A novel
C) A biography	D) An autobiography

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