Question

3. During the preparation of hydrogen chloride gas on a humid day,
the gas is usually passed through the guard tube containing
calcium chloride. The role of calcium chloride taken in the guard
tube is to
(a) absorb the evolved gas
(b) moisten the gas
(c) absorb moisture from the gas
(d) absorb Cl-ions from the evolved gas
GIVE REASON​

Answer 1

Answer:

C , absorb moisture from the gas .

Explanation:

calcium chloride is generally used as dehydrating agent which easily absorb water/ moisture . HCl gas in moisture makes HCl liquid acid which dangerous to ourselves , that's why to absorb the moisture we add CaCl2 ( calcium chloride) .