Question

Write down Kolbe's method of preparation of ethylene with suitable reactions

Answer 1

Answer:

Definition of Kolbe reaction.

1 : the synthesis of a hydrocarbon (as ethane) by the electrolysis of a salt (as sodium acetate)

2 : the synthesis of salicylic acid by heating a mixture of sodium phenoxide and carbon dioxide under pressure at 180° to 200° C.

Example of Kolbe's reaction :

When phenol is treated with sodium hydroxide, sodium phenoxide is produced, which on treating with carbon dioxide, followed by acidification, undergoest electrophilic substitution to give a hydroxybenzene acid as the main product.