A) Heart
B) Skin
C) Liver
D) Brain
Answer: B) Skin
Tag: chemistry mcqs
The hardest natural substance on Earth is:
A) Iron
B) Diamond
C) Gold
D) Silver
Answer: B) Diamond
The fastest animal on land is:
A) Lion
B) Tiger
C) Cheetah
D) Horse
Answer: C) Cheetah
The planet known as the “Red Planet” is:
A) Earth
B) Mars
C) Jupiter
D) Venus
Answer: B) Mars
The chemical symbol for water is:
A) H₂
B) HO₂
C) H₂O
D) O₂H
Answer: C) H₂O
The most oxidized form of Carbon is
(A) O2
(B) CO2
(C) H2
(D) CH4
The answer is: (B) CO2
The most reduced form of Carbon is
(A) O2
(B) CO2
(C) H2
(D) CH4
The answer is: (D) CH4
The unit of surface tension is:
(A) Newton per meter
(B) Newton per meter square
(C) 760 mm of Hg
(D) Newton square per meter
The answer is: (A) Newton per meter
Most of the cholesterol in human’s bloodstream is produced by the
(A) kidney
(B) liver
(C) lung
(D) large intestine
The answer is: (B) liver
Which Chromatography technique is used for analyzing the volatile substances?
(A) Paper Chromatography
(B) Liquid Chromatography
(C) Gas Chromatography
(D) Thin-layer Chromatography