Question

Formation of clouds, mist and fog are the examples of .
(1) chemical combination of O2 and H2 O
(2) physical change which involve condensation of water vapour
(3) physical change which involves sublimation
(4) chemical change which involves absorption of huge amount of energy

Answer 1

this question answer is option (2)

Answer 2

Correct Answer : option 2

physical change which involve condensation of water vapour

Reason :

It involves physical change because only the physical states are changed and no new product is formed.

Due to condensation that is water vapour will get converted into liquid on cooling.

so it is temporary change .