Question

The electrolysis of brine yields?

• A. Chlorine
• B. Hydrogen
• C. Sodium hydroxide
• D. All Of These.

Answer 1

The correct option is D

All Of These.

The explanation for the correct option:

Option(D): All Of These.

• Brine is particularly known as a highly concentrated solution of common salt in water i.e sodium chloride.
• The electrolysis of brine is known as the method basically used to produce chlorine on a large scale from salt.
• During the electrolysis of brine or NaCl produces hydrogen at the cathode and chlorine at the anode.
• However, the electrolyte sodium hydroxide remains in the solution.
• The chemical reaction showing the electrolysis of brine can be shown as:

$\underset{(\mathrm{Sodium}\mathrm{chloride})}{2\mathrm{NaCl}\left(\mathrm{s}\right)}+\underset{\left(\mathrm{Water}\right)}{{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}\stackrel{\mathrm{electrolysis}}{\to }\underset{\left(\mathrm{Chlorine}\right)}{{\mathrm{Cl}}_2\left(\mathrm{g}\right)}+\underset{\left(\mathrm{Hydrogen}\right)}{{\mathrm{H}}_2\left(\mathrm{g}\right)}+\underset{\left(\mathrm{Sodium}\mathrm{hydroxide}\right)}{\mathrm{NaOH}\left(\mathrm{aq}\right)}$

Hence, as the electrolysis of brine yields chlorine, hydrogen, and sodium hydroxide, the correct option is: All of the above(Option(D)