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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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

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Q. 35 C5.0( 5 Votes )

Why is soap not suit

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

Answer :

Soap does not work properly when hard water is used. Hard water contains salt of calcium and magnesium. When soap is added with hard water, a large amount of soap in water reacts with the calcium and magnesium ions of hard water to form an insoluble precipitate called scum. This makes the cleaning of clothes difficult.

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