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Question

In any situation, a change can be 


  1. where there is no alteration in state.

  2. Irreversible

  3. Reversible

  4. Both reversible and irreversible


Solution

The correct option is D

Both reversible and irreversible


A paper boat can be made from a paper and then by unfolding it, it can be converted back to the same paper. Thus this is a reversible change. Whereas when a plane drawn on a paper is cut out, then it cannot be put back at the same position, this change is permanent. Hence this change is irreversible.

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