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Salt can be separated from its solution (salt dissolved in water), because
(a) mixing of salt in water is a change that can be reversed by heating and melting of salt
(b) mixing of salt in water is a change that cannot be reversed
(c) mixing of salt in water is a permanent â€˜ change
(d) mixing of salt in water is a change that can be reversed by evaporation.
Correct Answer: (d) mixing of salt in water is a change that can be reversed by evaporation.
Explanation: Salt can be separated from its water solution by evaporating the water. Hence mixing of salt in water is a reversible change.
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