AP EAMCET202119 Aug 2021Morning ShiftChemistryHydrocarbonsActual
Assertion (A): Sodium acetate on Kolbe's electrolysis gives ethane. Reason (R): Methyl free radical is formed at cathode.
Options
- ABoth A and R are true and R is a correct explanation for A
- BBoth A and R are true but R is not a correct explanation for A
- CA is true, R is false
- DA is false, R is true
Correct answer
C. A is true, R is false
Step-by-step solution
Sodium acetate CH 3 COONa on Kolbe's electrolysis gives ethane C 2 H 6 . The sodium acetate dissociates as - CH 3 COONa ⇌ CH 3 COO - + Na + At anode: 2 CH 3 COO - → - 2 e - 2 CH 3 COO ∙ → 2 CH 3 ∙ + 2 CO 2 ↑ H 3 C ∙ + CH 3 → CH 3 - CH 3 ↑ ∙ At cathode: H 2 O + e - → - OH + H ∙ 2 H ∙ → H 2