Question

Ethyl chloride is treated with na metal in the presence of dry ether

Answer 1

It is a type of wurtz reaction, which is used to prepare symmetric alkanes.

General wurtz reaction is like the one below:
          2R–X + 2Na → R–R + 2NaX

Your reaction is in the attachment:

Answer 2

Answer: Butane and sodium chloride as a product will be obtained.

Explanation:

Wurtz reaction: Reaction of alkyl halide with sodium metal in the presence of the dry ether results in formation of higher alkanes.

$2R-X+2Na(s)\rightarrow R-R+2NaX$

When we treat Ethyl chloride is treated with Na metal in the presence of dry ether gives butane and sodium chloride as a product.

Refer to the image attached.