Q-4 Classify each of the following, as a physical or a chemical change. Give reasons.
(a) Drying of a shirt in the sun.
(b) Rising of hot air over a radiator.
(c) Burning of kerosene in a lantern.
(d) Change in the color of black tea on adding lemon juice to it.
(e) Churning of milk cream to get butter
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Drying of shirt in the sun is a Physical change. Since in this change no new substance is formed. (b) Rising of hot air over a radiator. ... Answer: While burning of kerosene in a lantern carbon dioxide, and water vapour is formed, hence it is a Chemical change.
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Drying of a shirt in the sun is the answer
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