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:

Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

A) B2H6	B) NF3
C) CCl3F	D) C6H6

Answer & Explanation Answer: C) CCl3F

Explanation:

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Q:

The Headquarters of the Southern Naval Command of the Indian Navy is located at which one of the following places?

A) Karwar	B) Kochi
C) Thiruvananthapuram	D) Chennai

Answer & Explanation Answer: B) Kochi

Explanation:

Headquarter are located in Kochi

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Filed Under: Indian Geography
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Q:

__________ is the interaction in which one species benefits and the other is neither harmed nor benefited.

A) Predation	B) Commensalism
C) Competition	D) Parasitism

Answer & Explanation Answer: B) Commensalism

Explanation:

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Filed Under: Biology
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Q:

Acid Rain has pH value of

A) 5.5 or less	B) 12.5 or more
C) 10.5 or more	D) 8.5 or more

Answer & Explanation Answer: A) 5.5 or less

Explanation:

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Q:

National Film Awards has been administered since _____.

A) 1973	B) 1980
C) 1987	D) 1994

Answer & Explanation Answer: A) 1973

Explanation:

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Filed Under: Honours and Awards
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Q:

In the following question, select the odd letter/ letters from the given alternatives

A) DHM	B) GKO
C) IMQ	D) LPT

Answer & Explanation Answer: A) DHM

Explanation:

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Filed Under: Verbal Reasoning - Mental Ability

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Q:

In the following question, a sentence has been given in Active/Passive voice. Out of four alternatives suggested, select the one, which best expresses the same sentence in Passive/Active voice.

One must keep one's promises.

A) One's promises must be kept by one.	B) One's promises had to be kept.
C) Promises must be kept.	D) Promises have to be kept by one.

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