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Question
Explain with a diagram the process used to – separate the following substance from the given mixture.
Potassium nitrate from a mixture of – potassium nitrate & potassium chlorate.
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Solution
Potassium nitrate KNO3 is more-soluble than potassium chlorate KClO3.
On heating to get the saturated solution and on cooling the saturated solution less soluble (KClO3) crystallise out. More soluble KNO3 is filtered out from the hot saturated solution and is recrystallised from hot water and dried.
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