Top 1000+ Solved Chemistry MCQ Questions Answer
Q. What product is formed when electricity is passed throughan aqueous solution of sodium chloride?
a. Sodium and water
b. Sodium oxide
c. Sodium and chlorine
d. Sodium hydroxide
Q. The atmospheric gas that is mainly responsible for Green House effect –
a. Ozone
b. Nitrogen
c. Oxygen
d. Carbondioxide
Q. Tar roads get damaged if there is –
a. stagnation of water on road
b. heavy traffic
c. no maintenance
d. no sloping
Q. The drug 'Marijuana' is a –
a. sedative
b. mental stimulant
c. hallucinating substance
d. tranquillizer
Q. Extensively used nitrogenous fertilizer is –
a. Ammonium nitrate
b. Urea
c. Ammonium sulphate
d. Nitro-lime
Q. Type metal used in printing press is an alloy of -
a. lead and copper
b. lead and antimony
c. lead and bismuth
d. lead and zinc
Q. The acid which is secreted by the glands in the stomach wall is –
a. sulphuric acid
b. hydrochloric acid
c. nitric acid
d. phosphoric acid
Q. Dry ice is –
a. solid ammonia
b. solid sulphur dioxide
c. dry carbon dioxide gas
d. solid carbon dioxide
Q. Cement containing excess amount of lime –
a. cracks during setting
b. becomes more strong
c. is slow setting
d. is quick setting
Q. The metal, used to galvanise iron to protect it from rusting is -
a. Zine
b. Chromium
c. Lead
d. Antimony