Chemistry 9701 · AS & A Level · Nitrogen compounds

Nitrogen compounds — practice question

Phenylamine, $\text{C}_6\text{H}_5\text{NH}_2$, and propylamine, $\text{CH}_3\text{CH}_2\text{CH}_2\text{NH}_2$, are made through different reduction reactions.
(a(i))[2]

Identify an organic compound that may be changed into $\text{C}_6\text{H}_5\text{NH}_2$ by reduction. State the reagents and conditions for this reaction.

(a(ii))[2]

Identify an organic compound that can be changed into $\text{CH}_3\text{CH}_2\text{CH}_2\text{NH}_2$ by reduction. State the reagent for this reaction.

(a(iii))[2]

Identify one test that can distinguish between $\text{C}_6\text{H}_5\text{NH}_2$ and $\text{CH}_3\text{CH}_2\text{CH}_2\text{NH}_2$ by giving a white precipitate with only one of these amines. Draw the structure of the precipitated compound.

(b)[4]

Describe the relative basicities of $\text{C}_6\text{H}_5\text{NH}_2$, $\text{CH}_3\text{CH}_2\text{CH}_2\text{NH}_2$ and $\text{NH}_3$. Explain your answer, stating which is least basic and which is most basic.

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: Nitrobenzene / $\text{C}_6\text{H}_5\text{NO}_2$.

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