1099+ Important Chemistry MCQ Questions Answers

Q:

___ is amphoteric in nature.

A) SO2	B) CaO
C) ZnO	D) N2O

Answer & Explanation Answer: C) ZnO

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Q:

The element with the highest electron affinity among halogens is

A) F	B) I
C) Cl	D) Br

Answer & Explanation Answer: C) Cl

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Q:

Which of the following is usually not an airpollutant?

A) Hydrocarbons	B) Sulphur dioxide
C) Carbon dioxide	D) Nitrous oxide

Answer & Explanation Answer: D) Nitrous oxide

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Q:

Which of these is not a macronutrient for Plants?

A) Nitrogen	B) Phosphorus
C) Potassium	D) Chlorine

Answer & Explanation Answer: D) Chlorine

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Q:

Which of the following are highly compressible?

A) Solid	B) Liquid
C) Gas	D) Solid and Liquid

Answer & Explanation Answer: C) Gas

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Q:

Which of the following elements has the lowest melting point?

A) Iron	B) Nitrogen
C) Iodine	D) Lead

Answer & Explanation Answer: B) Nitrogen

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Q:

Which one of the following is a cation?

A) Carbonate	B) Nitrate
C) Ammonium	D) Hydroxide

Answer & Explanation Answer: C) Ammonium

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Q:

Chemical composition of cement is

A) Limestone and Clay	B) Limestone, Clay and Gypsum
C) Limestone and Gypsum	D) Clay and Gypsum

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