How will the pH of brine (aq. NaCl solution) be affected when it is electrolysed?

Aqueous solution of brine contains Na^+, CP, H^+ and H^–. Electrode process are given as follows: 2H^++2e^ - H_2 (cathode) 2Cl^- Cl_2+2e (Anode) Remaining solution will contain NaOH which is base. therefore, pH will increase.

How will the pH of brine (aq. NaCl solution) be affected when it …

Download App

Question

How will the $pH$ of brine $(\ce{aq. NaCl}$ solution$)$ be affected when it is electrolysed?

✓

Answer

Aqueous solution of brine contains $Na^+, CP, H^+$ and $H^–.$
Electrode process are given as follows$:$
$2\text{H}^++2\text{e}^{-}\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ \ }\text{H}_2\ \ \ \ (\text{cathode})$
$2\text{Cl}^-\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ \ }\text{Cl}_2+2\text{e}\ \ \ \ (\text{Anode})$
Remaining solution will contain $\ce{NaOH}$ which is base.
therefore, $pH$ will increase.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from Electrochemistry→Electrochemistry — all question types→Chemistry STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Electrochemistry — Chemistry STD 12 Science — Question

Answer

Need a full question paper?

Explore more

Similar questions