Question

Which of the following statement is correct in relation to the halogenation of alkane?

• A. The reactivity of chlorine is less than bromine towards alkanes.
• B. Free radical are pyramidal intermediate, stabilised by hyperconjugation and resonance.
• C. Bromine has much higher regioselectivity than chlorine in abstracting $3^{\circ }$ hydrogen.
• D. All of the above.

Answer 1

The correct option is C Bromine has much higher regioselectivity than chlorine in abstracting $3^{\circ }$ hydrogen.

Bromine atom has a much higher regioselectivity than chlorine atom in abstracting $3^{\circ }$ hydrogen because a bromine atom is a less reactive hydrogen abstraction agent than a chlorine atom.