Question

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 1

Answer:

• Chemical change
• Physical change
• Chemical change
• chemical change

Answer 2

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❀ Chemical change

❀ Physical change

❀ Chemical change

❀ Chemical change