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Question
Generally transition elements and their salts are coloured due to the presence of unpaired electrons in metal ions. Which of the following compounds are coloured?
(i) \[\ce{KMnO4}\]
(ii) \[\ce{Ce(SO4)2}\]
(iii) \[\ce{TiCl}\]
(iv) \[\ce{Cu2 Cl2}\]
Solution
(i) \[\ce{KMnO4}\]
(ii) \[\ce{Ce(SO4)2}\]
Explanation:
\[\ce{KMnO4}\] and \[\ce{Ce(SO4)2}\] are coloured due to charge transfer.
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