Question

21. What is the difference between the following changes ?
(a) Rolling of roti from dough (b) Baking of roti
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Answer 1

Answer:

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Answer 2

Answer:

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☞rolling of chapatti and baking of chapati. if we roll out chapthi then we can reverse it into dough so it is called reversable change but if we bake it then we cannot make dough again so it is also called as irreversable change.