Question

which among the following are physical or chemical change a) evaporation of petrol b) burning of LG c) heating of iron rod d) curdling of milk e) sublimation of solid ammonium chloride ​

Answer 1

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a) Evaporation of petrol-

Physical Change

b) Burning of LPG-

Chemical Change

c) Heating of Iron rod-

Physical Change

d) Curdling of Milk-

Chemical Change

e) Sublimation of solid Ammonium chloride-

Physical Change

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Answer 2

Answer !!

Physical Change :-

a) Evaporation of petrol

c) Heating of iron rod

Chemical Change :-

b) Burning of LPG

d) Curdridge of milk

e) sublimation of solid ammonium chloride

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