Question

Large amount of soap is needed to wash clothes in hard water. EXPLAIN BRIEFLY (300 WORDS)
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Answer 1

Answer:

hard water is D2O and it does not dissolves soap

Explanation:

normal water is H2O .due to impurities, it does not washes clothes. therefore, large amount of soap is required

Answer 2

Answer:

Hardness in laundry water is a problem because the minerals that cause hardness interfere with the cleaning action of soaps and detergents. As a result, larger amounts of soaps and detergents are needed to counteract the minerals, and laundry results are not as good as when there is no hardness present.

Another reason is that it contains Magnesium and calcium salts in it.