Question

On monochlorination of 2-methyl butane, the total number of chiral compounds formed is:

Answer 1

(i) Chlorination at $C-2$ and $C-4$ produces no chiral compounds.
(ii) Chlorination at $C-3$ and $C-4$ produces a chiral carbon marked with star.
(iii) Chlorination at $C-1$ and $C-4$ also produces a chiral carbon marked with star.