Top 1000+ Solved Chemistry MCQ Questions Answer
Q. The substance most commonly used as a food preservative is –
a. sodium carbonate
b. tartaric acid
c. acetic acid
d. sodium salt of benzoic acid
Q. What among following is used to produce artificial rain?
a. copper oxide
b. carbon monoxide
c. silver iodide
d. silver nitrate
Q. Detergents clean surfaces on the principle of –
a. viscosity
b. surface tension
c. elasticity
d. floatation
Q. Which of the following is ozone depleting pesticide?
a. D.D.T.
b. Benzene
c. Methyl bromide
d. Ethylene ozonide
Q. An atomic pile is used for –
a. producing X-rays
b. conducting nuclear fission
c. coducting thermonuclear fusion
d. accelerating atoms
Q. Which of the following type of coal has the lowest proportion of volatile matter?
a. Lignite
b. Peat
c. Bituminous
d. Anthracite
Q. The compound to which H2 does not add is –
a. Biphenyl ethylene
b. Tetraphenyl ethylene
c. Tetra - a - naphthylethylene
d. Tetra - 9 - phenanthrylethylene
Q. The process of removing calcium and magnesium from hard water is known as –
a. Sedimentation
b. Filtration
c. Flocculation
d. Water softening
Q. Which of the following metals causes Itai-Itai disease?
a. Cadmium
b. Chromium
c. Cobalt
d. Copper
Q. Which is used in preparation of dynamite?
a. glycerol
b. ethyl alcohol
c. methyl alcohol
d. glycol
Q. Vinegar is the trade name of -
a. acetic acid
b. chloroform
c. carbon tetrachloride
d. ethyl alcohol
Q. Acid secretion is characteristic of -
a. Buccal cavity
b. Stomach
c. Small intestine
d. Large intestine
Q. Which one of the following is not a fertilizer?
a. Ammonium sulphate
b. Calcium sulphate
c. Calcium ammonium nitrate
d. Potassium nitrate