Q.

Is it true that not all physical changes are reversible?

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a

True

b

False

answer is A.

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Detailed Solution

  • The given statement is true.
  • Physical changes are the changes in which no new substance is formed. Only a substance’s physical properties, such as shape, size, colour, and state, change.
  • Most of the physical changes are reversible but not all.
  • For example, cutting wood is a physical change but we cannot get wood in its original form, so it is irreversible.
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