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Explain the cleansing action of soap with a diagram

The same question, asked 3 times: 2023*, 2024*, 2025. Every wording below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    2023

    36 (B)
    (i) What are soaps ? Explain the mechanism of cleansing action of soap with the help of a labelled diagram. (ii) Detergents are better than soaps. Justify.
  2. Question 2

    2024

    34 (B)
    (i) Describe method of preparation of soap giving chemical equation for the reaction involved. (ii) Explain with diagram the mechanism of the cleansing action of soaps.
  3. Question 3

    2025

    34 (b)
    What are soaps ? Write the structure of a soap molecule. Explain the cleansing action of a soap. Why are soaps not considered suitable for washing clothes in a region where water is hard ? How is this problem overcomed ?