1099+ Important Chemistry MCQ Questions Answers

Q:

............ element is represented by the given symbol.

A) Hydrogen	B) Mercury
C) Carbon	D) Gold

Answer & Explanation Answer: B) Mercury

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Q:

Name the gas used in preparation of bleaching powder

A) Oxygen	B) Hydrogen
C) Nitrogen	D) Chlorine

Answer & Explanation Answer: D) Chlorine

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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:

Chromite is an ore/mineral of

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

Answer & Explanation Answer: C) Chromium

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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:

What is nature of pH of Milk?

A) Slightly Acidic	B) Slightly Basic
C) Highly Acidic	D) Highly Basic

Answer & Explanation Answer: A) Slightly Acidic

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Q:

Which of the following is most important for absorption of heat radiated from the Sun as well as from the Earth?

A) Carbon dioxide	B) Oxygen
C) Carbon monoxide	D) Nitrogen

Answer & Explanation Answer: A) Carbon dioxide

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Q:

Find the odd one out.

A) NaCl	B) Na2CO3
C) H2O	D) He

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