Question

Which of these statements is true about physical changes?

(a) It involves the breaking of bonds

(b) It involves a change in shape

(c) It does not involve a change in shape

(d) Melting of ice is a physical change

I got this question during a job interview.

Origin of the question is Biomolecules topic in division Biomolecules of Biology – Class 11

Answer 1

The correct answer is (b) It involves a change in shape

Explanation: Physical changes involve a change in the shape of a substance but it does not involve the breaking of bonds. Physical changes are reversible, unlike chemical changes. The melting of ice is a physical change.