What is the difference between soaps and detergents ? State in brief the
cleansing action of soaps in removing an oily spot from a fabric. Why are
soaps not very effective when a fabric is washed in hard water ? How is
this problem resolved ? .
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Answer:
soap is sodium or potassium salt of long chain carboxylic acid
soaps are effective only in soft water
detergents are ammonium or sulphonate saltof long chain of carboxylic acid
detergents are effective in both hard and soft water
Explanation:
cleanising action of soap read in ncert book
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