Chemistry MCQ Questions with answers

Here Important Chemistry MCQ questions are added which are frequently asked in almost all the examinations. You can check the correct answer of any question on clicking the show answer button or on option itself. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping whatsapp button.

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Learn Chemistry MCQs [Page 13 ]

O

Omveer • 5.26K Points
Tutor III Chemistry

Q) The acid that can be used as a hypnotic is

(A) Butanoic acid
(B) Benzoic acid
(C) Tartaric acid
(D) Barbituric acid

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Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

O

Omveer • 5.26K Points
Tutor III Chemistry

Q) In the vulcanization of rubber, the element used is

(A) Fe
(B) C
(C) Si
(D) S

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Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

O

Omveer • 5.26K Points
Tutor III Chemistry

Q) 2-Acetoxybenzoic acid is

(A) a dye
(B) an antibiotic
(C) an antiseptic
(D) known as aspirin

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Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

O

Omveer • 5.26K Points
Tutor III Chemistry

Q) The chemical name of quartz is

(A) Calcium oxide
(B) Sodium silicate
(C) Calcium phosphate
(D) Sodium phosphate

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Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

O

Omveer • 5.26K Points
Tutor III Chemistry

Q) When zinc reacts with hydrochloric acid, the gas evolved is

(A) Chlorine
(B) Oxygen
(C) Hydrogen
(D) None of these

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Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

M

Mr. Dubey • 100.64K Points
Coach Chemistry

Q) A dark purple compound used as an antiseptic and disinfectant is

(A) Potassium permanganate
(B) Sodium thiosulphate
(C) Calcium phosphate
(D) Potassium nitrate

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Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

C

Chandan Das • 6.78K Points
Tutor III Chemistry

Q) The percentage of Nitrogen in Air is

(A) 0.94
(B) 0.03
(C) 78.03
(D) 85.02

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Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

C

Chandan Das • 6.78K Points
Tutor III Chemistry

Q) Air is said to be saturated when :

(A) It contains maximum content of water vapour
(B) Its pressure is minimum
(C) Its thickness is maximum
(D) It blows over the barren land

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Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

C

Chandan Das • 6.78K Points
Tutor III Chemistry

Q) For extinguishing fire, we use

(A) Hydrogen
(B) Carbon Monoxide
(C) Marsh gas
(D) Carbon Dioxide

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Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

C

Chandan Das • 6.78K Points
Tutor III Chemistry

Q) Dry powder fire extinguishers contain

(A) Sand
(B) Sand and sodium carbonate
(C) Sand and potassium carbonate
(D) Sand and sodium bicarbonate

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Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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