JEE Main 2026 — 6 April, Evening Shift — Question 55

Which of the following sequence of hybridisation, geometry and magnetic nature are correct for the given coordination compounds ? A. $\left[\mathrm{NiCl}_{4}\right]^{2-}-\mathrm{sp}^{3}$, tetrahedral, paramagnetic B. $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+}-\mathrm{sp}^{3} \mathrm{~d}^{2}$, octahedral, paramagnetic C. $\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]-\mathrm{sp}^{3}$, tetrahedral, paramagnetic D. $\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}-\mathrm{dsp}^{2}$, square planar diamagnetic

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