IUPAC name of the chemical compound $ \text{Ni(PPh}_3)_2\text{Cl_2 $ $ 2+ $?}

Question

5.33 gram of $CrCl_3 \cdot 6H_2O$ (1:3 electrolyte) is passed through cation exchanger. The resulting solution is then treated with an excess of $AgNO_3$, leading to formation of 8.61 gran of precipitate. Calculate :
$\frac{\text{number of moles of complex reacted}}{\text{number of moles of AgCl precipitated}} \times 100$

Answer 1

The IUPAC nomenclature for $ \text{Ni(PPh}_3)_2\text{Cl}_2 $ $ 2+ $ is "Bis(triphenylphosphine) dichloronickel(II)". This compound features: - A nickel (Ni) atom in the +2 oxidation state. - Two triphenylphosphine (PPh3) ligands and two chloride (Cl) ligands coordinated to the nickel center. Within the IUPAC name: - "Bis" denotes the presence of two identical triphenylphosphine ligands. - "Dichloro" signifies the two chloride ligands. - "Nickel(II)" identifies the central metal ion and its +2 oxidation state.

Column-I (Complex compound)	Column-II ($\Delta_0$ (CFSE) $\text{cm}^{-1}$)
(i) $[Cr(CN)_6]^{3-}$	(P) 17000
(ii) $[Cr(H_2O)_6]^{3+}$	(Q) 15000
(iii) $[Cr(en)_3]^{3+}$	(R) 12000
(iv) $[CrF_6]^{3-}$	(S) 20000

IUPAC name of the chemical compound \( \text{Ni(PPh}_3)_2\text{Cl_2 \) \( 2+ \)?}

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