Page 386 - SUBSEC October 2017_Neat
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MODULE 3
CHEMISTRY OF THE ELEMENTS
3. (a) Transition elements form coloured compounds.
State THREE other characteristic properties of transition elements
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[3 marks]
(b) What are the colours of aqueous
2+
(i) CO ?
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[1 mark]
2+
(ii) Mn ?
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[1 mark]
(c) If aqueous CO is heated to dryness, what colour is observed?
2+
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[1 mark]
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(d) Explain what is meant by the term ‘ligand’.
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[1 mark]
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