Question

There are __ chiral centres in Penicillin.

Answer 1

Chiral Centre:

• An atom that has four distinct groups linked to it in a way that prevents a superimposable mirror image is known as a chiral center.
• Nowadays, the terms "chirality center" and "chiral center" are interchangeable.

Structure of penicillin:

In the above structure of Penicillin the chiral carbon is marked with $*$.

Hence, there is $3$ chiral Carbon in Penicillin.