NEET Chemistry ยท Medium

Hydrogen: Water MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

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WaterMediumQuestion 35013

Question

Permanent hardness of water is mainly due to:

  1. A
    chlorides and sulfates of Ca and Mg
    Correct
  2. B
    bicarbonates only
  3. C
    sodium salts only
  4. D
    dissolved oxygen

Correct answer

chlorides and sulfates of Ca and Mg

Explanation

These salts do not decompose on boiling.