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Question

The change which is permanent and can not be measured by just reversing the condition is known as:
  1. None of the above
  2. physical change
  3. Both A and B
  4. chemical change

A
chemical change
B
None of the above
C
physical change
D
Both A and B
Solution
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A chemical change is a permanent change in the sense that it cannot be reversed by just reversing the conditions.

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