Anhydrous calcium chloride is a _________ agent.

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Solution

Hygroscopic substances:
There are certain substances which absorb moisture from air without changing their physical state.These substances are called hygroscopic substances.
Desiccating Agents:
Hygroscopic substances which are used to remove water from the surroundings are called desiccating agents.
Examples:Calcium oxide and anhydrous calcium chloride.
Therefore,anhydrous calcium chloride is a desiccating agent.

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