Question

A centre of symmetry is equivalent to _________ fold alternating axis of symmetry.

(a) One

(b) Two

(c) Three

(d) Four

I got this question in a national level competition.

I'm obligated to ask this question of Chirality topic in portion Structure and Stereostructure of Molecules of Engineering Chemistry I

Answer 1

Correct answer is (b) Two

For explanation I would say: A centre of symmetry is equivalent to two-fold alternating axis of symmetry.