Given below are two statements : Statement I: Ni CN 4 2 - is square planar and diamagnetic complex, with dsp…

Given below are two statements :

Statement I: NiCN42- is square planar and diamagnetic complex, with dsp2 hybridization for Ni but NiCO4 is tetrahedral, paramagnetic and with sp3 hybridication for Ni.

Statement II : NiCl42- and NiCO4 both have same d-electron configuration, have same geometry and are paramagnetic.

In light the above statements, choose the correct answer form the options given below

  1. Both Statement I and Statement II are true.
  2. Statement I is correct but statement II is false.
  3. Statement I is incorrect but statement II is true.
  4. Both Statement I and Statement II are false.

Solution

NiCN42-: d8 configuration, SFL, sq. planar splitting dsp2, diamagnetic.

NiCO4 : d10 config (after excitation), SFL, tetrahedral splitting sp3, diamagnetic.

NiCl42-: d8 config, WFL, tetrahedral splitting sp3, paramagnetic(2 unpaired e-).

Electronic configuration of Ni atom in NiCO4

Asked in: JEE Main 2022 (28 Jun Shift 1)

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