Hexafluoro ferrate (III) ion is an outer orbital complex. The number of unpaired electrons present in it is:
Correct answer: D. 5
- A. 1
- B. 2
- C. 4
- D. 5
Explanation
Hexafluoroferrate (III) is [FeF6]3-. The O.N. of Fe in it is x + (-6) = - 3 or x - 6 = -3 or x = + 3.Thus in it, Fe is present as Fe3+, which contains 5 unpaired electrons.
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About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
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