Questions

Q:

Propyne and propene can be distinguished by

A) AgNO₃ in ammonia B) conc. H₂SO₄
C) dil. KMnO₄ D) Br₂ in CCl₄
 
Answer & Explanation Answer: A) AgNO₃ in ammonia

Explanation:

Propene, being an alkene, and propyne, being a alkyne, are distinguished using the common chemical tests namely ammoniacal silver nitrate or ammoniacal cuprous chloride. Ammoniacal silver nitrate is also called as Tollen's reagent.

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Q:

The maximum number of electrons that can be accommodated in M shell is

A) 8 B) 2
C) 18 D) 32
 
Answer & Explanation Answer: C) 18

Explanation:
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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 the four alternatives.

Most __________________ of all to the rambler on avian lore intent is the fact that there are many species and genera that are peculiar to the West, and ______________ new to him, keeping him constantly on the 'qui vive'. _____________ Colorado you will look in vain for the common blue jay, so abundant in all parts of the East; but you will be more _______________ compensated by the presence of seven other species _____________ the jay household.


but you will be more _______________ compensated

A) then B) that
C) than D) this
 
Answer & Explanation Answer: C) than

Explanation:
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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'.

 

He was smiling, (A)/ but his eyes retained (B)/ a look of solemness.(C)/ No error (D)

A) A B) B
C) C D) D
 
Answer & Explanation Answer: C) C

Explanation:
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Q:

In the following question, out of the four alternatives, choose the one which can be substituted for the given words/sentence.

 

A mixture of dried, naturally fragrant plant material, used to provide a gentle natural scent inside buildings, especially in residential settings.

A) potpourri B) perfume
C) scent D) aroma
 
Answer & Explanation Answer: A) potpourri

Explanation:
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Q:

Which of the following states has the lowest literacy rate?

A) Kerala B) Rajasthan
C) Bihar D) Maharashtra
 
Answer & Explanation Answer: C) Bihar

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".

 

With all this my mind wandered back to my brother who (had gone) to play basketball.

 

A) have gone B) have going
C) had went D) no improvement
 
Answer & Explanation Answer: D) no improvement

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 expresses the same sentence in Indirect/Direct speech.

 

The officer said, "I am very busy now".

 

A) The officer said that he was very busy now. B) The officer said that he is very busy then.
C) The officer said that he is very busy now. D) The officer said that he was very busy then.
 
Answer & Explanation Answer: D) The officer said that he was very busy then.

Explanation:
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