Question

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 liquefied petroleum gas (LPG). ​

Answer 1

Answer:

a, b, c are physical changes

Explanation:

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Answer 2

Answer:

1)physical change

2)physical change

3)not a physical change

4)physical change

expilanation : Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. ... Examples of physical properties include melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape, size, color, volume and density.