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 Chemistry Questions

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Q:

Which of the following is a natural polymer?

A) Bakelite B) Nylon
C) Polythene D) Starch
 
Answer & Explanation Answer: D) Starch

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Q:

The most abundant element in the earth's atmosphere is

A) Argon B) Nitrogen
C) Oxygen D) Krypton
 
Answer & Explanation Answer: B) Nitrogen

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Q:

Glycol is used to manufacture which of the following ?

A) Nylon B) Artificial silk
C) Terylene D) Rubber
 
Answer & Explanation Answer: C) Terylene

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Q:

Acid rain is caused due to pollution of atmosphere by

A)  oxides of nitrogen and sulphur B)  oxides of nitrogen and phosphorous
C) oxides of carbon and nitrogen D)  oxides of nitrogen and methane
 
Answer & Explanation Answer: C) oxides of carbon and nitrogen

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Q:

Magnesium oxide (MgO) + Water (H2O) = ?

A) [Mg(OH)] B) [Mg(O2H)2]
C) [Mg2(OH)] D) [Mg(OH)2]
 
Answer & Explanation Answer: D) [Mg(OH)2]

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Q:

What is dry ice?

A) Solid Carbon dioxide B) Solid Nitrogen dioxide
C) Solid Sulphur dioxide D) Solid Water
 
Answer & Explanation Answer: A) Solid Carbon dioxide

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Q:

Which electron dot formula represents a polar molecule?

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

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Q:

What is the reaction between an acid and a base called?

A) Desalination B) Crystallisation
C) Neutralisation D) Sublimation
 
Answer & Explanation Answer: C) Neutralisation

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