CAIE A-Level Chemistry A2 28.2.2 Terms Ligand As a Species That Contains Topic Practice

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Question 1

[Maximum number: 1]

Ruthenium and osmium are transition metals below iron in Group 8 of the Periodic Table.

Fig. 4.1 shows another ruthenium complex.

Fig. 4.1

Fig. 4.1

This complex contains the neutral ligand pyrazine.

Figure for Question 1 — CAIE A-Level Chemistry A2

Suggest how pyrazine is able to bond to two separate ruthenium ions.

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