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Science CBSE
Class 6
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Textbook questions
21.
NCERT Exemplar V
Exercise condition:
1
m.
Salt can be separated from its solution (salt dissolved in water), because
mixing of salt in water is a permanent change
mixing of salt in water is a change that can be reversed by evaporation
mixing of salt in water is a change that can be reversed by heating and melting of salt
mixing of salt in water is a change that cannot be reversed
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