| (i) Melting of ice | (i) Cutting of paper |
| (ii) Blowing of balloon | (ii) Flowering of bud Which of the following is correct? |
A)
P
Q
Reversible change
Reversible change
B)
P
Q
Irreversible change
Reversible change
C)
P
Q
Irreversible change
Irreversible change
D)
P
Q
Reversible change
Irreversible change
Correct Answer: D
Solution :
The water formed after melting of ice can be frozen again to form ice. If the air inside the blown balloon is allowed to escape, then the balloon regains its original shape. So, both these changes are reversible changes. While changes like cutting of paper and flowering of bud cannot be reversed and hence, are irreversible.
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