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NEET
Exam
NEET
Subject
Chemistry
Chapter
Hydrogen

NEET · Chemistry · Hydrogen

Why is magnesium hydroxide precipitated when hard water is boiled?

Why is magnesium hydroxide precipitated when hard water is boiled?

Options

  1. ABecause magnesium hydroxide is less soluble than magnesium carbonate
  2. BBecause magnesium hydroxide has a lower solubility product than magnesium carbonate
  3. CBecause magnesium hydroxide reacts with calcium ions in the water
  4. DBecause magnesium hydroxide forms strong hydrogen bonds with water molecules

Correct answer

B. Because magnesium hydroxide has a lower solubility product than magnesium carbonate

Step-by-step solution

Magnesium hydroxide is precipitated when hard water is boiled because it has a lower solubility product (Ksp) than magnesium carbonate, making it less soluble and causing it to form a precipitate.
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