Top 1000+ Solved Chemistry MCQ Questions Answer

From 886 to 900 of 1421

Q. Sulphuric acid is –

a. monobasic

b. dibasic

c. tribasic

d. tetrabasic

  • b. dibasic

Q. When Arsenic atoms are added Germanium lattice, it becomes a/an -

a. Insulator

b. Superconductor

c. Intrinsic semiconductor

d. Extrinsic semiconductor

  • d. Extrinsic semiconductor

Q. Hydrogen bomb is based upon the principle of             .

a. Nuclear fission

b. Nuclear fusion

c. Controller nuclear reaction

d. None of these

  • b. Nuclear fusion

Q. In an acid base reaction which product is produced along with a salt?

a. Hydrogen gas

b. Oxygen gas

c. Carbon dioxide

d. Water

  • d. Water

Q. The basic chemical building block of natural rubber obtained from trees is –

a. Isoprene

b. Vinyl Chloride

c. Acetylene

d. Neoprene

  • a. Isoprene

Q. Hydrogen was discovered by -

a. Cavendish

b. Lavosier

c. Rutherford

d. Scheele

  • a. Cavendish

Q. Glass is a –

a. pure solid

b. supercooled liquid

c. gel

d. polymer

  • b. supercooled liquid

Q. Uranium eventually decays into a stable isotope of —

a. Radium

b. Thorium

c. Lead

d. Polonium

  • c. Lead

Q. The substance that is added to make natural rubber strong and more bouncy is –

a. Polythene

b. Sponge

c. Sulphur

d. Chlorine

  • c. Sulphur

Q. White phosphorus is always kept under

a. benzene

b. kerosene

c. ether

d. water

  • d. water

Q. The amount of Chlorine available in water after disinfection is called as –

a. free chlorine

b. residual chlorine

c. free available chlorine

d. combined available chlorine

  • b. residual chlorine

Q. What are the major pollutants of cigarette smoke?

a. Carbon monoxide and dioxin

b. Carbon monoxide and nicotine

c. Carbon monoxide and benzene

d. Dioxin and benzene

  • b. Carbon monoxide and nicotine

Q. The chemical name of 'Common salt' is

a. Sodium chloride

b. Sodium nitrate

c. Ammonium chloride

d. Calcium chloride

  • a. Sodium chloride

Q. By-product obtained by soap industry is –

a. Caustic soda

b. Glycerol

c. Naphthalene

d. Caustic potash

  • b. Glycerol
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