A) Change in size
B) Change in state
C) Change in colour
D) Change in substance
Correct Answer: D
Solution :
Changes given in (A), (B) and (C) are reversible. However, change in a substance due to heating may not be reversible. For example, when paper is burnt, ash is formed. Ash is a new substance and this change is irreversible.You need to login to perform this action.
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