The products formed when an aqueous solution of NaBr is electrolysed in a cell having inert electrodes are

Question

The products formed when an aqueous solution of NaBr is electrolysed in a cell having inert electrodes are (A) Na and Br 2 (B) Na and O 2 (C) H 2, Br 2 and NaOH (D) H 2 and O 2

Tardigrade Admin · Accepted Answer

NaBr leftharpoons Na ++ Br - <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/b6b10d177c8de2ca6aed360fcf5f6460-.png" /> Br -- e - longrightarrow Br Br + Br longrightarrow Br 2 (at anode) So, the products are H 2, Br 2 and NaOH . H 2 at cathode, Br 2 at anode and NaOH in solution.

Q. The products formed when an aqueous solution of $N a B r$ is electrolysed in a cell having inert electrodes are

$N a$ and $B r_{2}$

$N a$ and $O_{2}$

$H_{2}, B r_{2}$ and $N a O H$

$H_{2}$ and $O_{2}$

$N a B r ⇌ N a^{+} + B r^{-}$

$B r^{-} - e^{-} ⟶ B r$
$B r + B r ⟶ B r_{2}$ (at anode)
So, the products are $H_{2}, B r_{2}$ and $N a O H . H_{2}$ at cathode, $B r_{2}$ at anode and $N a O H$ in solution.

Q. The products formed when an aqueous solution of NaBr is electrolysed in a cell having inert electrodes are

Na and Br2​

Na and O2​

H2​,Br2​ and NaOH

H2​ and O2​