Consider that d6 metal ion (M2+) forms a complex with aqua ligands, and the spin only magnetic moment of the complex is 4.90BM. The geometry and the crystal field stabilization energy of the complex is :
Held on 2 Sept 2020 · Verified 6 Jul 2026.
octahedral and −2.4Δ0+2P
tetrahedral and −0.6Δt
octahedral and −1.6Δ0
tetrahedral and −1.6Δt+1P
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By usual analysis, 1.00 g of compound $(\mathrm{X})$ gave 1.79 g of magnesium pyrophosphate. The percentage of phosphorus in compound $(X)$ is : (nearest integer) (Given, molar mass in $\mathrm{g} \mathrm{mol}^{-1}: \mathrm{O}=16, \mathrm{Mg}=24, \mathrm{P}=31$)
Among $Fe^{2+}, Fe^{3+}, Cr^{2+}$ and $Zn^{2+}$, the ion that shows positive borax bead test and with highest ionisation enthalpy is:
Consider three metal chlorides $\mathrm{x}, \mathrm{y}$ and z, where x is water soluble at room temperature, y is sparingly soluble in water at room temperature and z is soluble in hot water. $\mathrm{x}, \mathrm{y}$ and z are respectively
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Which of the following sequences of hybridisation, geometry and magnetic nature are correct for the given coordination compounds ? A. $[\text{NiCl}_4]^{2-}$ $-$ sp$^3$, tetrahedral, paramagnetic B. $[\text{Ni(NH}_3)_6]^{2+}$ $-$ sp$^3$d$^2$, octahedral, paramagnetic C. $[\text{Ni(CO)}_4]$ $-$ sp$^3$, tetrahedral, paramagnetic D. $[\text{Ni(CN)}_4]^{2-}$ $-$ dsp$^2$, square planar, diamagnetic Choose the correct answer from the options given below :
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