1099+ Important Chemistry MCQ Questions Answers

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:

Chromite is an ore/mineral of

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

Answer & Explanation Answer: C) Chromium

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Q:

If an atom has atomic number 10 and mass number 23, then what will be the number of protons and neutrons in an atom respectively?

A) 0, 10	B) 10, 23
C) 13, 10	D) 10, 13

Answer & Explanation Answer: D) 10, 13

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Q:

Chemical formula for sulphurous acid is:

A) H2SO4	B) H2SO3
C) H3SO3	D) H3SO4

Answer & Explanation Answer: B) H2SO3

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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:

What is contained in Chlorophyll ?

A) sodium	B) potassium
C) manganese	D) magnesium

Answer & Explanation Answer: D) magnesium

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Q:

Benzene is ______ in ethyl alcohol.

A) soluble	B) solute
C) insoluble	D) insolate

Answer & Explanation Answer: C) insoluble

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Q:

What is the base of the Octal Numeral System?

A) 8	B) 16
C) 32	D) 64

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