Chemistry 9701 · AS & A Level · Hydroxy compounds

Hydroxy compounds — practice question

Phenol, $\text{C}_6\text{H}_5\text{OH}$, is only a weak acid.
(a)[2]

Phenol may be prepared from phenylamine, $\text{C}_6\text{H}_5\text{NH}_2$. State the reagents and conditions needed for this reaction.

(b)[2]

When phenol is treated with dilute aqueous nitric acid at room temperature, a mixture of two isomeric products with molecular formula $\text{C}_6\text{H}_5\text{NO}_3$ is formed. Use the Data Booklet to draw the structural formulae of these two products in the boxes and name each product.

(c(i))[2]

When phenol reacts with excess aqueous bromine, draw and name the organic product formed in the box.

(c(ii))[1]

Describe two observable changes seen when phenol reacts with excess aqueous bromine.

(d)[1]

Write an equation for a neutralisation reaction where phenol acts as an acid.

(e)[3]

Water, phenol and ethanol can each act as acids. Arrange them in order of acidity, beginning with the most acidic, and explain your answer.

Worked solution & mark scheme

This 11-mark question has a full step-by-step worked solution and mark scheme. One marking point: $HNO_2$ or $NaNO_2 + HCl$

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