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A mixture of KCl and KF is added to sodi...

A mixture of KCl and KF is added to sodium chloride

A

To increase the conductivity of NaCl

B

To decrease the melting point of NaCl

C

To suppress the degree of dissociation of NaCl

D

To decrease the volatility of NaCl

Text Solution

Verified by Experts

The correct Answer is:
B
By adding impurities, the crystal structure (fcc) gets distorted. So, the result is breaking the bonds more easily and thus lowers the melting point.
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