1099+ Important Chemistry MCQ Questions Answers

Q:

The common name of hydrogen peroxide is

A) borax	B) bleach (liquid)
C) baking soda	D) gypsum

Answer & Explanation Answer: B) bleach (liquid)

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Q:

Which of the following compounds is the strongest acid?

A) p-nitrophenol	B) phenol
C) m-nitrophenol	D) p-cresol

Answer & Explanation Answer: A) p-nitrophenol

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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:

Fire extinguishers emit which gas?

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

Answer & Explanation Answer: C) Carbon dioxide

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Q:

Acetic Acid is another name for which of the following?

A) Vinegar	B) Baking Soda
C) Copper Sulphate	D) Magnesium Oxide

Answer & Explanation Answer: A) Vinegar

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Q:

Bronze is an alloy of

A) Copper & tin	B) Copper & zinc
C) Copper & iron	D) Iron & nickel

Answer & Explanation Answer: A) Copper & tin

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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:

Which of the following are highly compressible?

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

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