K2[Cu(CN)4] which one is correct?
Correct answer: D. Central atom is present in anionic sphere
- A. Potassium Tetra Cyano Cupperate
- B. Ligand is positively charged
- C. Coordination Number is 2
- D. Central atom is present in anionic sphere
Explanation
In the complex K2[Cu(CN)4], the central atom is copper (Cu), and it is present in the anionic sphere. The anionic part of the compound is [Cu(CN)4]^-2, and the central copper ion is part of this anionic complex.
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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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