Question

Q.5 Choose the correct statement - : (A) A
change in which the original substance
cannot be recovered is irreversible change
(B) Most of physical changes are reversible
whereas chemical changes are irreversible
(C) Both A and B (D) None of the above *​

Answer 1

Answer:

I think option C is correct

Answer 2

Answer:

Chemical changes are changes that occur in the chemical properties of the substance like its flammability, radioactivity, etc. All chemical changes are irreversible changes. Once the chemical properties of a substance are changed, it becomes another substance. Thus, it cannot return to its original state.

Explanation:

answer is both a &b

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