Isopentane on monochlorination gives four isomeric monochloro derivatives of isopentane. Which product(s) has/have a yield less than 35% in the mixture?
Reactivity of hydrogen for substitution by chlorine is
1o H : 2o H : 3o H
1 : 3.8 : 5
a. 6 × 1 = 6% = 27.7
b. 5 × 1 = 5% = 23.14
c. 2× 3.8 = 7.6% = 35.18
d. 3 × 1 = 3% = 13.8