Which among the following are physical or chemical changes? i. Evaporation of petrol
Which among the following are physical or chemical changes?
i. Evaporation of petrol
ii. Burning of Liquefied Petroleum Gas (LPG)
iii. Heating of an iron rod to red hot
iv. Curdling of milk
v. Sublimation of solid ammonium chloride
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Physical changes: Evaporation of petrol, heating of an iron rod to red hot, sublimation of solid ammonium chloride.
Chemical changes: Burning of Liquefied Petroleum Gas (LPG), curdling of milk.
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