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

AcademicChemistryNCERTClass 10

Physical changes
(a) Evaporation of petrol
(c) Heating of an iron rod to red hot.
(e) Sublimation of solid ammonium chloride

Chemical changes
(b) Burning of Liquefied Petroleum Gas (LPG)
(d) Curdling of milk
Updated on 10-Oct-2022 13:27:09