Answer:
Detergents are better
cleansing agents than soaps because they can be used even with hard water. The
charged ends of detergents do not form insoluble precipitates with calcium and
magnesium ions in hard water.
When soap is used
for washing clothes with hard water, it reacts with the calcium and magnesium
ions of hard water to form an insoluble precipitate called scum. Scum sticks to
the cloth to be washed and it makes the cleaning of clothes difficult.
Detergents
have a stronger cleansing action than soaps and are more soluble in water than soaps.
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