Question

How many enantiomeric pairs are produced by the monochlorination of 2-methylbutane?

• A. 1
• B. 2
• C. 4
• D. 6

Answer 1

The correct option is B

2

$C{H}_{3}CH\left(C{H}_3\right)C{H}_{2}C{H}_3$; it has four sets of equivalent hydrogens which results in the formation of four different monochlorination product. When chlorination takes place such that we get structures 1 OR 4, the chlorination results in the formation of a racemic mixture.