Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Which among the following are physical or chemical changes? (a) Evaporation of petrol

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

Answers (1)

Physical changes only change the appearance of a substance, not its chemical composition.

Chemical changes cause a substance to change into an entirely substance with a new chemical formula.

 

Physical changes

(a) Evaporation of petrol

(b) Heating of an iron rod to red hot.

(e) Sublimation of solid ammonium chloride

Chemical changes

(c) Burning of Liquefied Petroleum Gas (LPG)

(d) Curdling of milk

 

Posted by

infoexpert21

View full answer

Similar Questions

Latest Question