Chemistry
Grade-7
Easy

Question

Why are detergents better cleansing agents than soaps?

  1. Detergents form the lather
  2. Detergents have fragrance
  3. Detergents are denser
  4. Detergents are heavy

Hint:

Detergents can work in both soft and hard water.

The correct answer is: Detergents form the lather


    Detergents from the lather is the reason that makes detergents better cleansing agents than soaps.
    Synthetic detergents can be used in hard water washing, but soap is not suitable for hard water washing. Synthetic detergents lather in hard water.
    This is because synthetic detergents also lather well in hard water because they do not form insoluble calcium or magnesium salts when they react with the calcium and magnesium ions present in hard water and form magnesium salts that reduce cleaning power.
    Synthetic detergents are therefore better than soaps.

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