question_answer

The compounds formed at anode in the electrolysis of an aqueous solution of potassium acetate are:

A)  \[{{C}_{2}}{{H}_{6}}\]and \[C{{O}_{2}}\]              

B)  \[{{C}_{2}}{{H}_{4}}\]and \[C{{O}_{2}}\]

C)   \[C{{H}_{4}}\]and \[{{H}_{2}}\]               

D)  \[C{{H}_{4}}\]and \[C{{O}_{2}}\]

Correct Answer: A

Solution :

                 This is an example ofKolbes electrolysis. electrolysis                           , \[2C{{H}_{3}}COOK\xrightarrow{electrolysis}2C{{H}_{3}}CO{{O}^{-}}+2{{K}^{+}}\] At cathode: \[2{{K}^{+}}+2{{e}^{-}}\xrightarrow{{}}2K\] \[2K+2{{H}_{2}}O\xrightarrow{{}}2KOH+{{H}_{2}}\uparrow \] At anode.