Chemistry 9701 · AS & A Level · Chemistry of transition elements

Chemistry of transition elements — practice question

Table 6.1 lists five ligands.
(a(i))[2]

Use only the words monodentate, bidentate and polydentate to finish Table 6.1. Each of the three words may appear once, more than once, or not at all.

(a(ii))[1]

The molecule $\text{H}_2\text{NCH}_2\text{CH}_2\text{NHCH}_2\text{CH}_2\text{NH}_2$ is a tridentate ligand. Suggest the meaning of tridentate ligand.

(a(iii))[1]

Suggest how $\text{H}_2\text{NCH}_2\text{CH}_2\text{NHCH}_2\text{CH}_2\text{NH}_2$ behaves as a tridentate ligand.

(b(i))[1]

Complete Table 6.2 using the terms polar or non-polar. Each term may be used once, more than once, or not at all.

(b(ii))[1]

Describe how cis isomer 1 and cis isomer 2 differ.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: Accurate denticity labels for the ligands

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