Paheli mixed flour and water and
(i) made a dough,
(ii) rolled the dough to make a chapati,
(iii) baked the chapati on a pan,
(iv) dried the chapati and ground it in a grinder to make powder.
Identify the changes (i) to (iv) as the changes that can be reversed or that cannot be reversed.
(i) Making of dough from flour and water is an irreversible change.
(ii) Rolling the dough to make a chapati is a reversible change.
(iii) Baking the rolled chapati on a pan is an irreversible change.
(iv) Grinding of dried chapati in a grinder is an irreversible change.
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