Ncert Exercises & Solutions

Write hydrocarbon radicals that can be formed as intermediates during monochlorination of 2-methylpropane? Which of them is more stable?

2-methylpropane gives two types of radicals.

Radical (I) is more stable because it is

3 °

is free radical and stabilised by nine hyperconjugative structures (as it has 9

α

-hydrogens)

Radical (II) is less stable because it is

1 °

free radical and stabilised by only one hyperconjugative structure (as it has only 1

α

-hydrogen)