Questions

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:

What is an endothermic reaction?

A) Reaction in which heat is released. B) Reaction in which heat is absorbed.
C) Reaction in which neither heat is released nor absorbed. D) None of these
 
Answer & Explanation Answer: B) Reaction in which heat is absorbed.

Explanation:
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Q:

Which of the following metals is the most Malleable?

A) Al B) Zn
C) Na D) Ag
 
Answer & Explanation Answer: C) Na

Explanation:
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Q:

Which of the following states has the maximum area of Mangrove forest?

A) Rajasthan B) Uttar Pradesh
C) Sikkim D) West Bengal
 
Answer & Explanation Answer: D) West Bengal

Explanation:
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Q:

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one, which best express the same sentence in Indirect/Direct speech.

 

Veer said, "I was playing football".

A) Veer said he had been playing football. B) Veer said he was playing football.
C) Veer said that, that he was playing football. D) Veer said that he had been playing football.
 
Answer & Explanation Answer: D) Veer said that he had been playing football.

Explanation:
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Q:

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".
Rahul went out without (saying) good bye.

A) say even B) even said
C) say D) no improvement
 
Answer & Explanation Answer: D) no improvement

Explanation:
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Q:

In the following question, sentence given with blank to be filled in with an appropriate word(s). Four alternatives are suggested for the question. Choose the correct alternative out of the four and indicate it by selecting the appropriate option.

 

With the amount of conflicts in the world, a Third World War is ________

A) emanate B) emanant
C) eminent D) imminent
 
Answer & Explanation Answer: D) imminent

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Q:

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of thefour alternatives.

When the kerosene burned, the fuel in the tank below would be __________ pressure, and __________ a small circular flame would appear in the burner. The valve had tobe opened to let more kerosene vapour to the burner and pumping resumed. With the increase in pressure, the burner flame would spread _________ a loud noise. Tolower the flame, the valve had to be _________ opened to reduce the pressure and then tightened until the desired flame size was achieved. _________ you wanted theflame to be bigger, you had to hit the piston again. Pump stoves are still in vogue.

had to be _________ opened to reduce

A) partly B) some
C) none D) everything
 
Answer & Explanation Answer: A) partly

Explanation:
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