Question 2

Which of the following changes cannot be reversed?
(a) Hardening of cement
(b) Freezing of ice cream
(c) Opening a door
(d) Melting of chocolate

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Solution

Hardening of cement is an irreversible change because it can't be brought back to the powder form. Hence, this change cannot be reversed. So, option (a) is the correct answer.

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Similar questions

Melting of ice cream is a ___ change. (reversible/irreversible)

Which of the following is NOT a circle graph representing different flavours of ice-cream in an ice-cream parlour?

V - Vanilla

C - Chocolate

M - Mango

Question 1

Pick the change that can be reversed from the following
(a) Cutting of trees
(b) Melting of ghee
(c) Burning of candle
(d) Blooming of flower

Which of the following is a circle graph representing different flavors of ice-cream in an ice-cream parlor?

V - Vanilla

C - Chocolate

M - Mango

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