Chemistry 9701 · AS & A Level · 7.1

7.1 — practice question

Compound Z has a role in organic synthesis.
(a)[1]

Complete Table 6.1 so that it shows how many $\mathrm{sp}$, $\mathrm{sp^2}$ and $\mathrm{sp^3}$ hybridised carbon atoms are present in one molecule of Z.

(b(i))[1]

Z is able to undergo several reactions, as illustrated in Fig. 6.1. Name the two reaction types taking place in reaction 7 in Fig. 6.1.

(b(ii))[4]

Draw the structures for the organic products from reactions 7, 8 and 9 in Fig. 6.1.

(c(i))[1]

Predict how many peaks appear in the carbon-13 NMR spectrum of Z.

(c(ii))[2]

The proton ($^1$H) NMR spectrum of Z in D$_2$O shows three peaks for the proton environments, labelled a, b and c, as illustrated in Fig. 6.2. Complete Table 6.2 for the proton ($^1$H) NMR spectrum of Z in D$_2$O.

Worked solution & mark scheme

This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: sp = 1 and sp^{2} = 1 and sp^{3} = 3

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