Which one of the following absorbs moisture from atmosphere?

Sodium carbonate

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Sal ammoniac

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Potassium nitrate

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Calcium chloride

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Solution

The correct option is D Calcium chloride
Calcium chloride is used to absorb moisture from atmosphere. Calcium chloride is deliquescent. This means that it can pull large amounts of water from the surrounding environment that it actually dissolves in the absorbed water. Calcium chloride is liquid brine in its natural state.

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Q. Assertion :When common salt is kept open, it absorbs moisture from the air. Reason: Common salt contains magnesium chloride.

Q. Assertion (A) : When common salt is kept open, it absorbs moisture from the air.
Reason (R) : Common salt contains magnesium chloride.

Which of the following absorb moisture from air:

Question 03.
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
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(d) absorb ${Cl}^{-}$ ions from the evolved gas

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