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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Q:

Which of the following gases is produced due to incomplete combustion of fuel?

A) Carbon Dioxide	B) Carbon Monoxide
C) Methane	D) Ethane

Answer & Explanation Answer: B) Carbon Monoxide

Explanation:

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Q:

In which of the following solution the concentration of H+ ion is the maximum?

A) pH 6	B) pH 8
C) pH 5	D) pH 9

Answer & Explanation Answer: C) pH 5

Explanation:

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Q:

In each of the questions, four alternatives are given for the Idiom/Phrase. Choose the alternative which best expresses the meaning of the Idiom/Phrase and click the button corresponding to it.

Catch a tartar

A) To catch a dangerous person	B) To deal with a person who is more than one's match
C) To trap a wanted criminal with great difficulty	D) To live carefully and cautiously

Answer & Explanation Answer: B) To deal with a person who is more than one's match

Explanation:

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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

It goes without saying

A) To Silently bear the injustice	B) Something which is implied to be obvious
C) There is no point in doing something after you are told to do it	D) Break long relationship with someone

Answer & Explanation Answer: B) Something which is implied to be obvious

Explanation:

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Q:

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

She laughed at the antics of the jester.

A) Laughing at the antics of the jester was done by her.	B) She herself laughs at the antics of the jester.
C) The antics of the jester were laughed at by her.	D) Her laughter was to the antics of the jester.

Answer & Explanation Answer: C) The antics of the jester were laughed at by her.

Explanation:

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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Leave no stone unturned

A) Search for the hidden treasure	B) Do a futile task
C) Be known for achieving a tremendous feat	D) Try every possible course of action in order to achieve something

Answer & Explanation Answer: D) Try every possible course of action in order to achieve something

Explanation:

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Q:

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement".

The alarming report of the plane crash left everyone in a state of shock.

A) alarmed report	B) alarmed reporting
C) reported alarm	D) No improvement

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