Questions

Q:

Physical Research Laboratory was founded by ____.

A) S.K. Mitra B) C.V. Raman
C) Homi Bhaba D) Vikram Sarabhai
 
Answer & Explanation Answer: D) Vikram Sarabhai

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Q:

Which of these countries is not a permanent member of United Nations Security Council?

A) China B) India
C) United States D) France
 
Answer & Explanation Answer: B) India

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Filed Under: World Organisations
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Q:

A shop keeper cheats to the extent of 10% while buying and selling fruits, by using tampered weights. His total gain, in %, is:

A) 21 B) 24
C) 22 D) 23
 
Answer & Explanation Answer: A) 21

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Q:

Which Mughal Emperor fought the battle of Panipat in 1526?

A) Babur B) Humayun
C) Akbar D) Aurangzeb
 
Answer & Explanation Answer: A) Babur

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Filed Under: Indian History
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Q:

The Westminster parliamentary system was developed in ___________.

A) Spain B) Australia
C) UK D) USA
 
Answer & Explanation Answer: C) UK

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Filed Under: World Geography
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Q:

Which one of the following statements is correct?

A) The oxidation number for hydrogen is always zero. B) The oxidation number for hydrogen is always + 1.
C) The oxidation number for hydrogen is always -1. D) Hydrogen can have more than one oxidation number.
 
Answer & Explanation Answer: D) Hydrogen can have more than one oxidation number.

Explanation:

Hydrogen has two possible oxidation numbers: +1 and -1.

-1 in case of hydrides.

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Filed Under: Chemistry
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Q:

Warming Ammonium chloride with sodium hydrochloride in a test tube is an example of

A) Open system B) Closed system
C) Isobaric system D) Isothermal system
 
Answer & Explanation Answer: A) Open system

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Filed Under: Chemistry
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Q:

By volume, 78% of air is _______________

A) nitrogen B) oxygen
C) hydrogen D) helium
 
Answer & Explanation Answer: A) nitrogen

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Filed Under: Chemistry
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