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Question

A mixture of CaCl2 and KF is added to sodium chloride

A
to increase the conductivity of NaCl
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B
to decrease the melting point of NaCl
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C
to supress the degree of dissociation of NaCl
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D
to decrease the volatility of NaCl
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Solution

The correct options are
A to increase the conductivity of NaCl
B to decrease the melting point of NaCl
A mixture of CaCl2 and KF is added to sodium chloride to increase the conductivity of NaCl and to decrease the melting point of NaCl.
Hence, Option "A" & "B" are correct answers.

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