Among the following free radical bromination reactions, select those in which `2^(@)` halide is the major product-

Options

A. P, Q, R, S
B. P, R, U
C. P, R, S, T
D. P, Q, R, S, T

Answer

B

Explanation

Bromine is more selective `therefore` it will form `3^(@)` halide if there is presence of `3^(@)` hydrogen.
`therefore` Q, S, T, form `3^(@)` halide as major and P, R, U form `2^(@)` halide as major.