Questions

Q:

What is the action of dry HCl gas on dry litmus paper?

A) Blue litmus paper turns white B) Blue or red litmus paper does not change its colour
C) Blue litmus paper turns red D) Red litmus paper turns blue
 
Answer & Explanation Answer: B) Blue or red litmus paper does not change its colour

Explanation:
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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:

Which of the following represents the pair of sex chromosomes in women?

A) XY B) XX
C) YY D) None of these
 
Answer & Explanation Answer: B) XX

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Q:

Which among the following is called quicksilver?

A) Titanium B) Mercury
C) Platinum D) Radium
 
Answer & Explanation Answer: B) Mercury

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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".

 

We (have been) away for a long time, you know, and so we're anxious to get home again.

 

A) has been B) is been
C) have being D) no improvement
 
Answer & Explanation Answer: D) no improvement

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Q:

In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.

 

Lackadaisical

 

A) Active B) Energetic
C) Careless D) Enthusiastic
 
Answer & Explanation Answer: C) Careless

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Q:

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

 

Career ______ the kind of lifestyle one will lead and his/her position in the society.

 

A) determined B) determines
C) deter D) has been determine
 
Answer & Explanation Answer: B) determines

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Q:

Which amendment of the Constitution of India increased the age of retirement of High Court judges from 60 to 62 years?

A) 10th B) 12th
C) 15th D) 245th
 
Answer & Explanation Answer: C) 15th

Explanation:
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