1099+ Important Chemistry MCQ Questions Answers

Q:

What is dehydration?

A) Removal of acid from a molecule	B) Removal of base from a molecule
C) Removal of water from a molecule	D) Removal of alkali from a molecule

Answer & Explanation Answer: C) Removal of water from a molecule

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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:

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 of the following elements has the lowest melting point?

A) Titanium	B) Sulphur
C) Argon	D) Zinc

Answer & Explanation Answer: C) Argon

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Q:

Covalent Bond is also called _________.

A) Molecular Bond	B) Proton Bond
C) Nucleus Bond	D) Electron Bond

Answer & Explanation Answer: A) Molecular Bond

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Q:

What is the pH of water?

A) 7	B) 5
C) 3	D) 1

Answer & Explanation Answer: A) 7

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Q:

The nitrogenous waste of Human Beings is

A) Ammonia	B) Urea
C) Ammonium Nitrate	D) Uric Acid

Answer & Explanation Answer: B) Urea

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Q:

The most abundant element in the earth's atmosphere is

A) Argon	B) Nitrogen
C) Oxygen	D) Krypton

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