Chemistry 9701 · AS & A Level · Halogen compounds

Halogen compounds — practice question

Under ultraviolet light, bromine reacts with butane to make bromobutane. This reaction gives two structural isomers with the molecular formula $\text{C}_4\text{H}_9\text{Br}$.
(a(i))[2]

Draw the two structural isomers and state the systematic name of each one.

(a(ii))[1]

Identify which type of structural isomerism is shown in (a)(i).

(b(i))[1]

Identify the chiral centre in halothane, then mark it with an asterisk (*).

(b(ii))[1]

Construct an equation to represent the homolytic fission of halothane, $\text{CF}_3\text{CHBrCl}$.

(b(iii))[1]

Complete Fig. 4.2 to display the arrangement of electrons in a bromine atom using electrons-in-boxes notation.

(c(i))[1]

Draw the monomer for X.

(c(ii))[1]

Suggest one reason why disposing of items made from X is difficult.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: Accurate structures and names for 1-bromobutane and 2-bromobutane

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