InterviewSolution
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InterviewSolution
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Which one of the elements with the following outer orbital configuration may exhibit the larger number of oxidation states ?A. `3d^(5) 4s^(1)`B. `3d^(5) 4s^(2)`C. `3d^(2) 4s^(2)`D. `3d^(3) 4s^(2)` |
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Answer» Correct Answer - B Variable oxidation states of transition metals arise form fact that the energy difference between (n - 1) d subshell and ns subshell is relatively small and hence electrons form both the subshell can participate in bonding. Mn with maximum no. of unpaired (n - 1) d electrons and maximum no. of ns electrons exhibits the largest numbver of oxibation states: `-1, 0, +1, +2, +3, +4, +5, +6` and `+7`. |
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