Question

$HCl$ gas can fume in moist air.

• A. True
• B. False

Answer 1

The correct option is A True

Concentrated hydrochloric acid or fuming HCl acid forms acidic mists. Both the mist and the solution have a corrosive effect on human tissue like eyes, skin, intestines etc. This moisture can be prevented during the preparation of HCl by using a guard tube with calcium chloride in it.