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 of Kolbe's 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: \[2C{{H}_{3}}CO{{O}^{-}}\xrightarrow{{}}2\underset{{{C}_{2}}{{H}_{6}}}{\mathop{\underset{\downarrow }{\mathop{\underset{2C{{\overset{\centerdot }{\mathop{H}}\,}_{3}}}{\mathop{\underset{\downarrow -2C{{O}_{2}}}{\mathop{C{{H}_{3}}}}\,}}\,}}\,}}\,CO\overset{\centerdot }{\mathop{O}}\,+2{{e}^{-}}\]
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