Question

Consider the following proposed structures for benzene, each of which is consistent with the molecular formula C₆H₆.

(i)

(ii)

(iii)

(iv)

(v)

(b)When C₆H₅Cl reacts further with chlorine to give C₆H₄Cl₂, exactly three isomers of the latter compound form. Which of the five proposed structures for benzene are consistent with this observation?

Short answer

The five proposed structures for benzene are consistent with this observation is structure (ii)

Step-by-step solution

Given Data

C₆H₅Cl reacts further with chlorine to give C₆H₄Cl₂, exactly three isomers of the latter compound form.

Concept

Chemical bonds connecting the atoms of a molecule are located in structural formulae. A structural formula is made up of symbols for the atoms connected by brief lines that stand in for chemical bonds.

b) Three different isomers

When chlorobenzene is further reacted with, it produces three different isomers of dichlorobenzene. The resulting trio isomer is,

1. Ortho-dichlorobenzene
2. Meta-dichlorobenzene
3. Para-dichlorobenzene

The reaction takes place with the structure (ii). The consistent structure for the formation of products is structure (ii).