CBSE Class 10 Answered
Natural detergent and man-made detergent
Asked by pratikdongare53904 | 17 Mar, 2019, 08:41: PM
Expert Answer
Natural Detergents:
i. Soap nut (ritha) and soap pod (shikakai) are natural detergents in common use.
ii. They contain a chemical named saponin.
iii. Use of soap nut and soap pod do not have any harmful effect on human skin or on silk and woolen threads and clothes.
ii. They contain a chemical named saponin.
iii. Use of soap nut and soap pod do not have any harmful effect on human skin or on silk and woolen threads and clothes.
Man-made Detergents:
(1) Soap: Soap is a man-made detergent which has been used since ancient times. In the past, soap was prepared using animal fat and wood ash.
Types of soaps:
i. Hard soap is a sodium salt of fatty acids. Hard soaps are used for washing clothes.
ii. Soft soap is a potassium salt of fatty acids. It does not cause skin irritation and is hence used for bathing.
(2) Synthetic detergent:
i. A synthetic detergent is any synthetic substance, other than soap, that is an effective cleanser and functions equally well as a surface-active agent in hard or soft water.
ii. There are several methods of producing a synthetic detergent. The long chain structural units in synthetic detergents are obtained from raw materials which are mainly fats or kerosene.
Answered by Ramandeep | 18 Mar, 2019, 11:51: AM
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