1.

Which of the following are physical changes and which are chemical changes? (a) Burning of a magnesium wire (b) Freezing of water (c) Rusting of iron (d) Glowing of an electric bulb

Answer»

Which of the following are physical changes and which are chemical changes?

(a) Burning of a magnesium wire

(b) Freezing of water

(c) Rusting of iron

(d) Glowing of an electric bulb



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