1099+ Important Chemistry MCQ Questions Answers

Q:

Chromite is an ore/mineral of

A) Zinc	B) Uranium
C) Chromium	D) Titanium

Answer & Explanation Answer: C) Chromium

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Q:

What is the relative molecular mass of water?

A) 8 u	B) 9 u
C) 16 u	D) 18 u

Answer & Explanation Answer: D) 18 u

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Q:

Trinitrotoluene is

A) used to melt metals	B) used to fuse two metals
C) used as an abrasive	D) used as an explosive

Answer & Explanation Answer: D) used as an explosive

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Q:

The oceanic crust mainly consists of silica and __________.

A) magnesium	B) iron
C) manganese	D) sulphur

Answer & Explanation Answer: A) magnesium

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Q:

Soft drinks contain:

A) Oxalic acid	B) Tartaric acid
C) Carbonic acid	D) Citric acid

Answer & Explanation Answer: C) Carbonic acid

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Q:

__________gives hardness to stainless steel.

A) Zinc	B) Carbon
C) Lead	D) Tin

Answer & Explanation Answer: B) Carbon

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Q:

The common name of dichlorodifluoromethane is _____.

A) galena	B) Freon
C) gypsum	D) borax

Answer & Explanation Answer: B) Freon

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Q:

What is the process of rust forming on iron called?

A) Rusting	B) Crystallisation
C) Shovel	D) Spade

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