Which reagent will you use for the following reaction ?
`CH_(3)CH_(2)CH_(2)CH_(3)toCH_(3)CH_(2)CH_(2)CH_(2)Cl+CH_(3)CH_(2)CHClCH_(3)`

Options

A. `Cl_(2)`/ UV light
B. `NaCl ,H_(2)SO_(4)`
C. `Cl_(2)` gas in dark
D. `Cl_(2)` gas in the presence of iron in dark.

Answer

A

Explanation

The given reaction is a free radical substitution reaction. It occurs in presence of ultraviolet light or at high temperature or peroxides which are free radical generators. Free radical substitution cannot take place in dark.