Which of the following can form a chelate?
Correct answer: B. Oxalate
- A. Amine
- B. Oxalate
- C. Carbonyl
- D. Cyano
Explanation
Option B is correct since Oxalate is a bidentate ligand, and it shapes a chelate. This may be coordinated with all the O atoms. A chelate is a compound containing a ligand (typically organic) bonded to a central metal atom at two or more points. Option A is incorrect since ammine does not form a chelate. Option C is incorrect since carbonyl does not form a chelate. Option D is incorrect since cyano does not form a chelate as it is a monodentate ligand.
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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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