Cooking of food is a _________________ change.

Cleaning substances made from petroleum products are commonly called

From the following which is used as a preservative :

_________________ salts make hard soap

Excess amount of fluorine in body may cause ___________________________disorders.

The standard of a _____________________ is stated by the amount of fatty substance present in it.

When soap dissolves in water the __________ is reduced.

Name an oily fat taken from wool :

The excessive intake of ______________________ lands to harmful effects.

____________ salts make soft soap.