Question

Of the three molecules, which is achiral?

I. HCl II. HBr III. ClBr

a) I

b) II

c) III

d) More than one of these choices.

e) None of these choices.

Answer 1

The molecules HCl, HBr, and ClBr are all achiral as they are diatomic, symmetrical and have no chiral centers; thus, more than one of the provided choices is achiral.

Step-by-step explanation:

Of the three molecules, achiral refers to a molecule that does not have a mirror image that is non-superimposable. Molecules I (HCl) and II (HBr) are diatomic and have only two atoms, which means they are inherently symmetrical and do not have chiral centers, making them achiral. Molecule III (ClBr) is also achiral because it is composed of only two different atoms and is also symmetrical with no chiral centers. Therefore, the correct answer is d) More than one of these choices.