Question

complete the reaction CH3-CH2-Br+Na in presence of dry ethers​

Answer 1

Answer:

CH3-CH2-Br + Na +CH3-CH2-Br=CH3-CH2-CH2-CH3 + 2 NaBr

Explanation:

this is the wurtz reaction in which two simple alkyl halides are reacted over sodium in order to get symmetrical alkane

Answer 2

The product formed is propane.

• This reaction is known as Wurtz Reaction. It involves the industrial preparation of alkanes.

• It is a coupling reaction developed by Charles-Adolphe which is used in both organic and organometallic chemistry.

• The basic or framework reaction involves the use of alkyl halide with sodium metal in the presence of dry ether i.e.                                                  

                                    R-X + 2Na + X-R → R–R + 2NaX

• The reaction involves the use of 2Na molecules that reacts with the alkyl halide to give rise to alkane.

                2CH₃-CH₂Br + 2Na + dry ether → CH₃CH₂CH₂CH₃ + NaBr  

• The Wurtz reaction is not suitable for odd numbers or unsymmetrical carbon atoms.