Question

Question No. 65
Which of the following reactions can be used to prepare methane?
(A) Decarboxylation of sodium acetate
(B) Kolbe's electrolysis of sodium acetate
(C) Wurtz reaction
(D) Hydrogenation of a kenes

Answer 1

Answer:

A) Decarboxylation of sodium acetate:

Explanation:

A) Decarboxylation of sodium acetate:

When sodium acetate is heated with sodium hydroxide in the presence of soda lime. It gives alkane.

CH₃ -COONa + NaOH    →    CH₄ + Na₂CO₃

                                      (CaO)

B) Kolbe's electrolysis of sodium acetate.

This method can not be used for the methane because only symmetrical alkanes can be produced from this method.

C) Wurtz reaction

This method can not be used for the methane because this method can only form symmetrical alkanes having even number of carbons.

D) Hydrogenation of alkenes

This method can not be used for the formation of methane.