The concentration aqueous solution of potassium salts of acetic acid and propanoic acid are electrolysed. Which of the following hydrocarbons is/are produced ?

Options

A. only `CH_(3)CH_(2)CH_(3)`
B. `CH_(3)CH_(3)` and `CH_(3)CH_(2)CH_(2)CH_(3)`
C. `CH_(3)CH_(2)CH_(2)CH_(3), CH_(3)CH_(2)CH_(3)` and `CH_(3)CH_(3)`
D. Only `CH_(3)CH_(3)`

Answer

C

Explanation

`CH_(3)-underset(O)underset(||)(C)-O^(-)overset(-e^(-))rarrCH_(3)-underset(O)underset(||)(C)-overset(*)O overset(-CO_(2))rarr overset(*)CH_(3)`
`CH_(3)CH_(2)-underset(O)underset(||)(C)-O^(-)overset(-e^(-))rarrCH_(3)CH_(2)-underset(O)underset(||)(C)-overset(*)O overset(-CO_(2))rarr CH_(3)overset(*)CH_(2)`
`overset(*)CH_(3)+overset(*)CH_(3)rarr CH_(3)CH_(3)`
`CH_(3)overset(*)CH_(2)+CH_(3)overset(*)CH_(2) rarr CH_(3)CH_(2)CH_(2)CH_(3)`
`CH_(3)overset(*)CH_(2)+overset(*)CH_(3) rarrCH_(3)CH_(2)CH_(3)`