Q45 · CSIR-NET Chemistry, June 2016

Paper: CSIR-NET June 2016 · Subject: Inorganic Chemistry · Chapter: Lanthanides and Actinides · Topic: Lanthanides & Actinides – General · Marks: 2 · Difficulty: Medium

For monoionic complex $\left[\mathrm{UO}_{2}(\mathrm{NO}_{3})_{3}\right]^{-}$ the correct coordination number and geometry respectively, are
(a)8 and hexagonal bipyramedal
(b)5 and square pyramidal
(c)8 and square antiprism
(d)5 and trigonal bipyramidal
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
Three bidentate nitrates in the equatorial plane plus the two axial oxo groups: coordination number 8, hexagonal bipyramidal.

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