" 1-Bromo-3-chlorocyclobutane when treated with two equivalents of Na,in the presence of ether which of the following will be formed? "

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

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-chorocyclobutane when treated with two equivalents of Na in the presence of ether results into

when treated with two equivalents of sodium in dry ether gives:

when treated with two equivalents of sodium in dry ether gives:

When an ethereal solution of 1-bromo-3-chlorocyclobutane is treated with two equivalent of sodium, the compound expected to be formed is-