Question

Chlorine is prepared in the laboratory by the action of,
a. Zn and HCl
b. MnO₂ and HCl
c. CaCO₃ and HCl
d. Pb(NO₃)₂ and HCl

Answer 1

options c.
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Answer 2

Hello Student,

◆ Answer - (b)

Chlorine is prepared in the laboratory by the action of MnO₂ and HCl.

● Laboratory preparation of chlorine -

In laboratory, magnesium dioxide is treated with hydrochloric acid to obtain chlorine gas. Magnesium chloride and water are formed as byproducts in this reaction.

MnO2 + 4HCl --> MnCl2 + 2H2O + Cl2

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