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Water — CHEMISTRY STD 9 — Question

ICSE BoardEnglish MediumSTD 9CHEMISTRYWater1 Mark
Question
Explain why a hot saturated solution of potassium nitrate forms crystals as it cools.
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Answer

Solubility of nitrates decreases with a fall in temperature. Thus, when a hot saturated solution of potassium nitrate cools, it forms crystals as it separates from the solution.

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