What would you observe when(a) a saturated solution of potassium chloride prepared at 60°C is allowed to cool to room temperature.
(b) an aqueous sugar solution is heated to dryness.
(c) a mixture of iron filings and sulphur powder is heated strongly.

AcademicChemistryNCERTClass 9

(a) When a saturated solution of potassium chloride prepared at 60°C is allowed to cool to room temperature, crystals of potassium chloride will separate out.
(b) On heating sugar solution, water will evaporate first. Once the solution dries up, it would turn black and the sugar is charred.
(c) Iron sulphide(FeS) is formed when a mixture of iron filings and sulphur is heated strongly.
raja
Updated on 10-Oct-2022 13:29:36

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