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Which out of the following statements is...

Which out of the following statements is not correct for anhydrous calcium chloride ?

A

It is prepared by heating hydrated calcium chloride above 533K

B

It is used for drying alcohol and `NH_3`

C

It is used as a dehydrating agent to control snow and ice on highway and pavements

D

When mixed in concrete, it gives quicker initial setting and improves its strength

Text Solution

Verified by Experts

The correct Answer is:
B
Ahydrous `CaCl_2` is not used to dry `NH_3` and alcohols because it combines with alcohols to form alcohol of crystallization `(CaCl_2.4C_2H_5OH)`.
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