Question

1. Which of the following is not a physical change?
(a) Boiling of water to give water vapour
(b) Melting of ice to give water
(c) Dissolution of salt in water
(d) Combustion of liquified petroleum gas (LPG)
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Answer 1

Answer:

d

Explanation:

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Answer 2

Answer:

combustion of liquefied petroleum gas lpg