The given questionis incomplete. The complete question is :
The following product is not obtained during electrolysis of an aqueous solution of sodium formate
(A) H
(B) [tex]CO_2 [/tex]
(C) CH
(D) NaOH
Answer: (C) CH
Explanation:
The electrolysis of solution of sodium formate is :
[tex]HCOONa\rightarrow HCOO^-+Na^+[/tex]
[tex]H_2O\rightarrow H^++OH^-[/tex]
The reactions which occur at anode are:
[tex]2HCOO^-\rightarrow 2HCOO^.\rightarrow 2H^.+2CO_2[/tex]
[tex]2H^.\rightarrow H_2[/tex]
The reaction which occurs at cathode is:
[tex]Na^++e^-\rightarrow Na[/tex]
[tex]2Na+2H_2O\rightarrow 2NaOH+H_2[/tex]
The overall reaction is:
[tex]2HCOONa(aq)+2H_2O\rightarrow H_2+CO_2+2NaOH[/tex]
Thus CH is not obtained during electrolysis of an aqueous solution of sodium formate
