1.

Which of the following changes are Reversible and Irreversible?(a) Blowing of a balloon(b) Folding a paper to make a toy aeroplane(c) Rolling a ball of dough to make roti(d) Baking cake in an oven(e) Drying a wet cloth(f) Making biogas from cow dung(g) Burning of a candle

Answer»


Which of the following changes are Reversible and Irreversible?



(a) Blowing of a balloon



(b) Folding a paper to make a toy aeroplane



(c) Rolling a ball of dough to make roti



(d) Baking cake in an oven



(e) Drying a wet cloth



(f) Making biogas from cow dung



(g) Burning of a candle





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