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Question: Answered & Verified by Expert
Why is magnesium hydroxide precipitated when hard water is boiled?
ChemistryHydrogenNEET
Options:
  • A Because magnesium hydroxide is less soluble than magnesium carbonate
  • B Because magnesium hydroxide has a lower solubility product than magnesium carbonate
  • C Because magnesium hydroxide reacts with calcium ions in the water
  • D Because magnesium hydroxide forms strong hydrogen bonds with water molecules
Solution:
2917 Upvotes Verified Answer
The correct answer is: Because magnesium hydroxide has a lower solubility product than magnesium carbonate
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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