1.

Classify the following into physical and chemical changes. (a) Expansion of metals on heating (b) Crystallization of salts from their solutions (C ) Blackening of silverware (d) Ripening of fruits (E ) Cooking of food (F) Melting of ice

Answer» `" (a) physical change "" ""(b) Physical change "`
`" (C ) Chemical change "" ""(d) Chemical change "`
`"(e ) Chemical change "" ""(f) Physical change "`


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