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JEE Main · 2022 · 28 Jul 2022 · Shift 2 · Hydrogen

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The products obtained during treatment of hard water using Clark's method are:
  1. (A) and
  2. (B) and
  3. (C) and ✓ Correct
  4. (D) and

Answer: (C)

Solution

Clark's method uses lime water to remove temporary hardness. The reactions are:


Thus, the products formed are and , which precipitate out and can be removed.

JEE Main · 2022 · 28 Jul 2022 · Shift 2 · Single correct option

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