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General Knowledge : Questions Answers : Chemistry



1.

CuSO4.5H2O is the chemical formula of-

A. Caustic soda.

B. Washing soda.

C. Blue vitriol.

D. Ammonium Sulphate.



2.

Bleaching powder is produced from-

A. Calcium and Oxygen.

B. Sodium, Hydrogen and Oxygen.

C. Calcium, Oxygen and Chlorine.

D. None of these.



3.

Which is not a rare gas?

A. Helium.

B. Argon.

C. Neon.

D. Radon.



4.

Which is the allotrope of carbon?

A. Diamond.

B. Gold.

C. Silver.

D. Copper.



5.

In Leclanche cell-

A. Electric energy is converted into chemical energy.

B. Chemical energy is converted into electric energy.

C. Heat energy is converted into electric energy.

D. None of these.