JEE MAIN - Chemistry (2024 - 31st January Morning Shift - No. 7)
The correct statements from following are:
A. The strength of anionic ligands can be explained by crystal field theory.
B. Valence bond theory does not give a quantitative interpretation of kinetic stability of coordination compounds.
C. The hybridization involved in formation of $$\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$$ complex is $$\mathrm{dsp}^2$$.
D. The number of possible isomer(s) of cis- $$\left[\mathrm{PtCl}_2(\mathrm{en})_2\right]^{2+}$$ is one
Choose the correct answer from the options given below:
Explanation
(A) Strength of anionic ligands cannot be explained by CFT instead LFT i.e., ligand field theory explains the strength of ligands.
(B) VBT does not give a quantitative interpretation of kinetic stability of coordination compounds.
(C) $\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-} \rightarrow \mathrm{Ni}^{2+}$ in presence of $\mathrm{CN}^{-}$ligand.
_31st_January_Morning_Shift_en_7_1.png)
Square planar geometry since $\rightarrow 4, d s p^2$ hybridised orbitals created.
(D) cis- $\left[\mathrm{PtCl}_2(\mathrm{en})_2\right] \Rightarrow$ It has two possible isomers
_31st_January_Morning_Shift_en_7_2.png)
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