A dibromo derivative of an alkane reacts with sodium metal to form an alicyclic hydrocarbon. The derivative is

• A

  1, 1-dibromopropane
• B

  2, 2-dibromobutane
• C

  1, 2-dibromoethane
• Correct answer
  D

  1 , 4-dibromobutane

Solution

$\omega$-dihalides when reacts with sodium metal, gives cyclic hydrocarbons. This is an example of intramolecular Wurtz reaction.

Hence, the correct answer is option: 'D'.