Sodium is made by the electrolysis of a molten mixture of ab... | Chemistry | SolveeIt | Solveeit

Today, August 19

Question

Sodium is made by the electrolysis of a molten mixture of about 40% NaCl and 60% $CaCl_2$ because

A

$Ca^{2+}$ can reduce NaCl to Na

B

$Ca^{2+}$ can displace Na from NaCl

C

$CaCl_2$ helps in conduction of electricity

D

this mixture has a lower melting point than NaCl

Answer

this mixture has a lower melting point than NaCl

Explanation

Solution

The melting point of sodium chloride is high, so to reduce the melting point of NaCl some $CaCl_2$ is added to the electrolytic mixture.