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:

By volume, 78% of air is _______________

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

Explanation:
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Q:

Which type of Ethanol is made from sources like molasses, sugarcane, sugar beet, sorghum and edible oil seeds?

 

A) 2G ethanol B) 1G ethanol
C) Clean ethanol D) 3G ethanol
 
Answer & Explanation Answer: B) 1G ethanol

Explanation:
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Q:

The minimum short­term natural hazard is __________

A) blizzard B) earthquake
C) volcanic eruption D) bolt of lightning
 
Answer & Explanation Answer: D) bolt of lightning

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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

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Q:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.
The Captain along with (1)/his team has been (2)/invited to the function.(3)/No Error (4)

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: D) 4

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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.

My father is going to build a six bedroom bungalow.

A) A six bedroom bungalow was going to be built by my father. B) My father will have built a bungalow which will have six bedrooms.
C) A bungalow of six bedrooms will have been built by my father. D) A six bedroom bungalow is going to be built by my father.
 
Answer & Explanation Answer: D) A six bedroom bungalow is going to be built by my father.

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Q:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

 

Live internet streaming requires an form of source media, an encoder (1)/ to digitize the content, a media publisher, and a content delivery (2)/network to distribute and deliver the content. (3)/ No error (4)

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: A) 1

Explanation:
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