In the process of electrolysis,the current is carried out inside the electrolyte by

What happens to the $pH$ during the electrolysis of aqueous $CuSO_4$ using platinum electrodes?

Electrolysis of concentrated aqueous solution of $NaCl$ results in

Which of the following is a non-conductor of electricity?

For the extraction of sodium from $NaCl$,an electrolytic mixture of $NaCl + Na_3AlF_6 + CaCl_2$ is used. During the extraction process,only sodium is deposited at the cathode,while $K$ and $Ca$ are not,because:

Assertion : On increasing dilution,the specific conductance keeps on increasing.
Reason : On increasing dilution,the degree of ionisation of a weak electrolyte increases and the number of ions per unit volume decreases.