Q30Multiple choice
Which among the following are physical or chemical changes?
- (a)Evaporation of petrol
- (b)Burning of Liquefied Petroleum Gas (LPG)
- (c)Heating of an iron rod to red hot.
- (d)Curdling of milk (e) Sublimation of solid ammonium chloride
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(a) Evaporation of petrol
(c) Heating of an iron rod to red hot.
(b) Burning of Liquefied Petroleum Gas (LPG)
(d) Curdling of milk (e) Sublimation of solid ammonium chloride