Question 12

Which of the following changes cannot be reversed?
Blowing of a ballon
Folding a paper to make a toy aeroplane
Rolling a ball of dough to make roti
Baking cake in an oven
Drying a wet cloth
Making biogas from cow dung
Burning of a candle

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Solution

Changes that cannot be reversed are as follows:
Baking cake in an oven
Making biogas from cow dung
Burning of a candle

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Similar questions

Q. Which of the following change cannot be reversed?
(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.

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

Q. Folding paper to make an aeroplane is a reversible change. Why?

Question 19

Paheli mixed flour and water and (a) made a dough, (b) rolled the dough to make a chapatti, (c) baked the chapatti on a pan, (d) dried the chapatti and ground it in a grinder to make powder. Identify the changes (a) to (d) as the changes that can be reversed or that cannot be reversed.

What type of change is making 'Roti' with a dough ball?

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Question 12 Which of the following changes cannot be reversed? Blowing of a ballon Folding a paper to make a toy aeroplane Rolling a ball of dough to make roti Baking cake in an oven Drying a wet cloth Making biogas from cow dung Burning of a candle

Changes that cannot be reversed are as follows: Baking cake in an oven Making biogas from cow dung Burning of a candle

Question 12

Which of the following changes cannot be reversed?
Blowing of a ballon
Folding a paper to make a toy aeroplane
Rolling a ball of dough to make roti
Baking cake in an oven
Drying a wet cloth
Making biogas from cow dung
Burning of a candle

Changes that cannot be reversed are as follows:
Baking cake in an oven
Making biogas from cow dung
Burning of a candle