burning of cooking gas is an undisier change
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Change A is physical change - In this change, the liquefied gas changes it states from liquid to gas and hence no new substance are formed. Change B is chemical change:- Burning produces new substance and hence the reaction can't be reversed back.
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1
Answer:
Change A is physical change - In this change, the liquefied gas changes it states from liquid to gas and hence no new substance are formed. Change B is chemical change:- Burning produces new substance and hence the reaction can't be reversed back
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