Which of the following is produced by the electrolysis of $NaCl$?

$NaOH$ is manufactured by the electrolysis of a brine solution. The products of the reaction are:

During the electrolysis of higher concentration of $H_2SO_4$,the product obtained at anode is . . . . . . .

Name the processes from which chlorine is obtained as a by-product. What will happen if an aqueous solution of $NaCl$ is subjected to electrolysis?

The number of electrons required to reduce $4.5 \times 10^{-5} \text{ g}$ of $Al^{3+}$ to $Al$ is:

On the electrolysis of aqueous solution of sodium sulphate,at the cathode we get: