Questions

Q:

Which of the following is a property of sodium hydroxide?

A) It is insoluble in ether and other Non-polar solvents B) It is slowly soluble in water
C) It has an odor of rotten egg smell D) All the above
 
Answer & Explanation Answer: A) It is insoluble in ether and other Non-polar solvents

Explanation:

Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of sodium cations Na+ and hydroxide anions OH−.

Properties:

1. It is highly soluble in water, and readily absorbs moisture and carbon dioxide from the air.

2. NaOH is insoluble in ether and other non-polar solvents.

3. It is an odorless compound.

 

Uses:

Sodium hydroxide is used in many industries: in the manufacture of pulp and paper, textiles, drinking water, soaps and detergents, and as a drain cleaner.

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Q:

The criminal was __________ lest he should escape.

A) fetid B) fettered
C) fettled D) feted
 
Answer & Explanation Answer: B) fettered

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.

Lend me your ear

A) To politely ask for someone's full attention B) Begging someone to listen to your grievances
C) When nobody is willing to hear your side of the story D) Call someone for severe scolding.
 
Answer & Explanation Answer: A) To politely ask for someone's full attention

Explanation:
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Q:

Which one of the following elements does not form solid hydrogen carbonate?

A) Sodium B) Potassium
C) Caesium D) Lithium
 
Answer & Explanation Answer: D) Lithium

Explanation:

Potassium bicarbonate (also known as potassium hydrogen carbonate or potassium acid carbonate) is the inorganic compound with the chemical formula KHCO3. It is a white solid

Sodium bicarbonate is a white solid that is crystalline, but often appears as a fine powder.

LiHCO3 is found in solution form while rest alkali metals hydrogen carbonates are solid due to the anomalous properties of Li and its diagonal relationship with the Mg.

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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.

A moot point

A) Agreeable B) Disputed
C) Unclear D) Unknown
 
Answer & Explanation Answer: B) Disputed

Explanation:
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Q:

What are DDks? Name an operating system that includes this feature.

Answer

DDks are device driver kits, which are equivalent to SDKs for writing device drivers. Windows NT includes DDks.

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Q:

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
BC, GHI, NOPQ, ?

A) BCDEF B) UVWXY
C) WXYZA D) STUVW
 
Answer & Explanation Answer: C) WXYZA

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.

Anil says, "I am glad to be here this morning"

A) Anil says he is glad to be there that morning. B) Anil says that he is glad to be there that morning.
C) Anil was saying that he was glad to be there this morning. D) Anil says that he was glad to be here this morning.
 
Answer & Explanation Answer: B) Anil says that he is glad to be there that morning.

Explanation:
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