During the electrolysis of an aqueous solutio | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) In an aqueous solution of $NaBr$,the ions present are $Na^+$,$Br^-$,$H^+$,and $OH^-$. At the cathode,the reduction potential of $H_2O$ $(-0.83 \ V

Vedclass · Accepted Answer

$H_2, Br_2$ and $NaOH$

Vedclass · Answer

(C) In an aqueous solution of $NaBr$,the ions present are $Na^+$,$Br^-$,$H^+$,and $OH^-$. At the cathode,the reduction potential of $H_2O$ $(-0.83 \ V)$ is higher than that of $Na^+$ $(-2.71 \ V)$,so $H_2$ gas is evolved: $2H_2O(l) + 2e^- \rightarrow H_2(g) + 2OH^-(aq)$. At the anode,the oxidation potential of $Br^-$ is higher than that of $H_2O$,so $Br_2$ is produced: $2Br^-(aq) \rightarrow Br_2(l) + 2e^-$. Consequently,$H_2$ gas is produced at the cathode,$Br_2$ is produced at the anode,and $NaOH$ remains in the solution.

During the electrolysis of an aqueous solution of $NaBr$ using inert electrodes,what are the products formed?

Similar Questions

The passage of current liberates $H_2$ at cathode and $Cl_2$ at anode. The solution is

Which of the following substances is a good conductor of electricity?

Give the electrolytic reactions of molten $NaCl$ occurring at inert electrodes.

On passing the current in a water voltameter,the hydrogen is:

Which of the following is released at the cathode during the electrolysis of aqueous sodium chloride?

Vedclass Test Series

Exam Paper Generator

Online Exam Module