2.Which of these is a chemical change? (a)Mixing sand with water (b) magnetizing a piece of iron (c) a copper container getting tarnished (d) evaporation of water.
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2.Which of these is a chemical change? (a)Mixing sand with water (b) magnetizing a piece of iron (c) a copper container getting tarnished (d) evaporation of water.
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Answer is:-
(C) A copper container getting tarnished.
Hope it helps you dear.......xd
evaporation of water........