In which of the following molecules carbon atom marked with asterisk (*) is asymmetric?

Question

In which of the following molecules carbon atom marked with asterisk (*) is asymmetric? (a) (b) (c) (d)

Philoid · Accepted Answer

The molecules (a), (b), (c) have non-superimposable mirror images. Molecule (d) cannot have an asymmetric carbon atom because all four species attached to the carbon are not different from each other, and the mirror image of (d) when rotated 180° is superimposable on the original image. The correct option is (ii).

In which of the following molecules carbon atom marked with asterisk (*) is asymmetric?(a)(b)(c)(d)

In which of the following molecules carbon atom marked with asterisk (*) is asymmetric?
(a)

(b)

(c)

(d)