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CaCl(2) is preferred over NaCl for clear...

`CaCl_(2)` is preferred over NaCl for clearing ice on roads particularly in very cold countries. This is because:

A

`CaCl_(2)` is less soluble in `H_(2)O ` than NaCl

B

`CaCl_(2)` is hygroscopic but NaCl is not

C

Eutectic mixture of `CaCl_(2)"/"H_(2)O` freezes at `-55^(@)C` while that of `NaCl"/"H_(2)O` freezes at `-18^(@)C`

D

`NaCl` makes the road slipperty but `CaCl_(2)` does not

Text Solution

Verified by Experts

The correct Answer is:
C
Due to much lower freezing point of neuteric mixture of `CaCl_(2)"/"H_(2)O`.
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