Top 1000+ Solved Chemistry MCQ Questions Answer
Q. Which one of the following metals does not react with water to produce Hydrogen ?
a. Potassium
b. Cadmium
c. Sodium
d. Lithium
Q. Ozone consists of -
a. Oxygen only
b. Oxygen and Nitrogen
c. Hydrogen and Carbon
d. Oxygen and Carbon
Q. The greenhouse effect is caused by the higher level of which gas in the atmosphere?
a. Carbon monoxide
b. Carbon dioxide
c. Nitrous oxide
d. Sulphur dioxide
Q. Which one of the following is extensively used for sterilizing water?
a. Bleaching powder
b. Alum
c. Borax powder
d. Soda powder
Q. Which one of the following acids is used in battery?
a. Hydrochloric acid
b. Hydrofluoric acid
c. Sulphuric acid
d. Sulphurous acid
Q. When iron rusts, its weight :
a. decreases
b. increases
c. remains the same
d. first increases and then decreases
Q. Which of the following is used as filler in tyre of rubber?
a. Carbon black
b. Coal
c. Coke
d. Graphite
Q. Which of the following alloy is used in making magnet?
a. Duralumin
b. Stainless steel
c. Elniko
d. Magnalium
Q. The enzyme that converts glucose to ethyl alcohol is –
a. invertase
b. Maltase
c. Zymase
d. Diastase
Q. Who developed Hydrogen Bomb?
a. Wernher Von Braun
b. J. Robert Oppen Heimer
c. Edward Teller
d. Samuel Cohen
Q. The fundamental particles present in the nucleus of an atom are -
a. Electron, proton
b. Proton, neutron
c. Neutron, electron
d. Neutron, positron
Q. Bleaching action of moist sulphur dioxide is because of its –
a. basic property
b. acidic property
c. oxidising property
d. reducing property
Q. The long range potential of nuclear energy in India depends on its reserves of –
a. thorium
b. uranium
c. plutonium
d. radium