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> a mixture of iron filings and sulphur powder is heated strongly?
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
- Solution:
- Sodium potassium chloride will separate from the saturated solution when the temperature of the solution is reduced from 60°C to room temperature. The solubility of the solid state is affected by the change in temperature.
- When aqueous sugar solution is heated, first water gets evaporated up to some extent then sugar gets
- Iron combines with sulphur and forms iron sulphide (FES).
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