Which of the following should be preferably used to avoid the scum formation during washing clothes?
A
Soap nut
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B
Synthetic detergents
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C
Soft soap
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D
Natural detergents
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Solution
The correct option is B Synthetic detergents Scum formation decreases the cleaning property. Natural detergents and soap form scum with hard water. Whereas, synthetic detergents are prepared by the chemical processing of fats. They do not form scum with the hard water.