PDF chapter test TRY NOW
Give one example in each case.
(a) Change which occurs on heating but can be reversed.
(b) Change which occurs on heating but cannot be reversed.
(c) Change which occurs on cooling but can be reversed.
(b) Change which occurs on heating but cannot be reversed.
(c) Change which occurs on cooling but can be reversed.
Answer variants:
Formation of salt solution
Formation of ice from water
Baking of cake
Heating of an iron rod
Mixing of cement with water
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