1-Bromo-3-chlorocyclobutane is treated with two equivalents of Na, in the presence of ether. Which of the following compounds will be formed.

1-Bromo-3-chlorocyclobutane is treated with two equivalents of Na, in

1.	1-Bromo-3-chlorocyclobutane is treated with two equivalents of Na, in the presence of ether. Which of the following compounds will be formed.
Answer» <BR> Solution :Since alkyl bromides are more reactive than alkyl CHLORIDES, therefore, intramolecular wurtz REACTION OCCURS on the SIDE of Br atom.