Chemistry 9701 · AS & A Level · Hydrocarbons

Hydrocarbons — practice question

The displayed structure for H is shown.
(a(i))[1]

H reacts with cold, dilute, acidified potassium manganate(VII). Give the structure of the organic product formed from the reaction of H with cold, dilute, acidified potassium manganate(VII).

(a(ii))[2]

Give the structures of the organic products formed in the reaction of H with hot, concentrated, acidified potassium manganate(VII).

(b(i))[3]

Complete the reaction scheme to show the mechanism for the reaction of H with bromine to make J. Include all required curly arrows, lone pairs and charges.

(b(ii))[1]

Explain the source of the dipole on the bromine molecule.

(b(iii))[1]

J is formed as an equimolar mixture of isomers. State the type of isomerism shown by J.

(b(iv))[2]

Draw the structures of the two isomers of J.

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: Correct displayed structure for the diol

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