Question

Mention the essential chemicals to prepare soap in laboratory. Descibe in brief the test of determining the nature (acidic/alkaline) of the reaction mixture of saponification reaction.

Answer 1

Chemicals required: Vegetable oil, common salt and 20% sodium hydroxide
solution
When a red litmus paper is dipped in the reaction mixture, the paper changes its
colour to blue. Hence, the reaction mixture of the saponification reaction is basic
in nature.

Answer 2

Raw Materials Required For preparation of soap in laboratory are :

Vegetable oil

Sodium Hydroxide

Commom salt

Test to determine the nature of reaction mixture: When a red litmus paper is dipped in the reaction mixture, the paper changes its colour to blue. Hence, the reaction mixture of the saponification reaction is basic in nature.