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Question
The exhibition of highest co-ordination number depends on the availability of vacant orbitals in the central atom. Which of the following elements is not likely to act as central atom in \[\ce{MF^{3-}6}\]?
Options
B
Al
Ga
In
Solution
B
Explanation:
The element M in the complex ion \[\ce{MF^{3-}6}\] has a coordination number of six. Since B has only s- and p-orbitals and no d – orbitals, therefore, at the maximum it can show a coordination number of 4. Thus, B cannot form complex of the type \[\ce{MF^{3-}6}\].
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