| Which of the following changes can be reversed? |
| 1. Breaking of a glass |
| 2. Burning of a paper |
| 3. Melting of ice |
| 4. Formation of curd from milk |
A) Only 3
B) 1, 2 and 4
C) 2, 3 and 4
D) 2 and 3
E) None of these
Correct Answer: A
Solution :
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