NiCl₂{P(C₂H₅)₂(C₆H₅)}₂ exhibits... |JEE Advanced | Chemistry

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$\mathrm{NiCl}_2\left\{\mathrm{P}_{\left(\mathrm{C}_2 \mathrm{H}_5\right)_2}\left(\mathrm{C}_6 \mathrm{H}_5\right)\right\}_2$ exhibits temperature dependent magnetic behaviour (paramagnetic/ diamagnetic). the coordination geometries of $\mathrm{Ni}^{2+}$ in the paramagnetic and diamagnetic states are respectively

Select the correct option:

A

tetrahedral and tetrahedral

B

square planar and square planar

C

tetrahedral and square planar

D

square planar and tetrahedral

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