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Question
Name a member of the lanthanoid series which is well known to exhibit +4 oxidation state.
Solution
Cerium is the lanthanoid element which is well known to exhibit +4 oxidation state.
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RELATED QUESTIONS
Account for the following :
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Match the statements given in Column I with the oxidation states given in Column II.
| Column I | Column II | |
| (i) | Oxidation state of Mn in MnO2 is | (a) + 2 |
| (ii) | Most stable oxidation state of Mn is | (b) + 3 |
| (iii) | Most stable oxidation state of | (c) + 4 |
| Mn in oxides is | (d) + 5 | |
| (iv) | Characteristic oxidation state of lanthanoids is | (e) + 7 |
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