22 23 24 A 24 B 24 C 25 A 25 B 25 C 26 A 26 B 26 C 27 28 29 A 29 B 30 31 A 31 B 31 C 32 A 32 B 32 C 32 D 33 A 33 B 34 A 34 B 35 A 35 B 35 C 36 A 36 B 36 C 37 A 37 B 37 C 38 A 38 B 38 C 39 A 39 B 39 C 40 A 40 B 41 A 41 B 41 C 42 A 42 B 42 C 43 A 43 B 43 C 44 A 44 B 44 C 45 A 45 B 45 C

Lakhmir Singh & Manjit Kaur - Chemistry

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Q. 38 C5.0( 2 Votes )

Why have detergents

Class 10th Lakhmir Singh & Manjit Kaur - Chemistry 4. Carbon and Its Compounds

Answer :

Detergents do not form insoluble precipitates with calcium and magnesium ions in hard water hence, they can be used for washing even with hard water. Thus, Detergents are better cleansing agents than soaps.

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