Assertion (A): Sodium acetate on Kolbe's electrolysis gives ethane. Reason (R): Methyl free radical is…

Assertion (A): Sodium acetate on Kolbe's electrolysis gives ethane.

Reason (R): Methyl free radical is formed at cathode.

  1. Both A and R are true and R is a correct explanation for A
  2. Both A and R are true but R is not a correct explanation for A
  3. A is true, R is false
  4. A is false, R is true

Solution

Sodium acetate CH3COONa on Kolbe's electrolysis gives ethane C2H6. The sodium acetate dissociates as -

CH3COONaCH3COO-+Na+

At anode:

2CH3COO--2e-2CH3COO2CH3+2CO2

H3C+CH3CH3-CH3

At cathode:

H2O+e--OH+H

2HH2

Asked in: AP EAMCET 2021 (19 Aug Shift 1)

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