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During the preparation of hydrogen chlor...

During the preparation of hydrogen chloride gas on a humid day, the gas is usually passed through the guard tube containing anhydrous calcium chloride. The role of anhydrous 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.

Text Solution

Verified by Experts

The correct Answer is:
C
The role of calcium chloride taken in the guard tube is to absorb moisture from the gas. This is because calcium chloride is used as a drying agent which absorbs moisture from the hydrogen chloride (HCl) gas.
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