Multiple choice

Assertion: In Kolbe’s electrolytic method, if there are n-carbon atoms in the parent acid, the alkane produced will have (n-1) carbon atoms. Reason: Ethylene and acetylene cannot be prepared by this method.

  1. Both A and R are true and R is the correct explanation of A.

  2. Both A and R are true but R is not the correct explanation of A.

  3. A is true but R is false.

  4. A is false but R is true.

  5. Both A and R are false.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This option is correct because in kolbe’s electrolytic method, if there are n-carbon atoms in the parent acid, the alkane produced will have 2(n-1) carbon atoms and during kolbe’s electrolytic method, loss of one carbon atom as CO2 occurs from the acid producing alkyl radical with n-1carbon atoms which upon subsequent dimerization gives alkane with 2(n-1) carbon atoms.

Keep practicing — related questions