Match List-I with List-II. List-I (Complex) List-II (Hybridisation of central metal ion) --- --- (A) [ Co F 6 ] 3- (I) d 2 sp 3 (B) [ NiC l 4 ] 2- (II) s p 3 (C) [ Co ( N H 3 ) 6 ] 3+ (III) s p 3 \!\! \!\! d 2 (D) [ Ni ( CN ) 4 ] 2- (IV) ds p 2 Choose the correct answer from the options given below :

(A)-(III), (B)-(II), (C)-(I), (D)-(IV)

(A)-(I), (B)-(IV), (C)-(III), (D)-(II)

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

(A)-(III), (B)-(IV), (C)-(I), (D)-(II)

Chemistry · Coordination Compounds

JEE Main 2025 — 28 January, Evening Shift — Question 35

Match List-I with List-II.

List-I (Complex)	List-II (Hybridisation of central metal ion)
(A) ${{\left[ \text{Co}{{\text{F}}_{6}} \right]}^{3-}}$	(I) ${{\text{d}}^{2}}\text{sp}{{~}^{3}}$
(B) ${{\left[ \text{NiC}{{\text{l}}_{4}} \right]}^{2-}}$	(II) $\text{s}{{\text{p}}^{3}}$
(C) ${{\left[ \text{Co}{{\left( \text{N}{{\text{H}}_{3}} \right)}_{6}} \right]}^{3+}}$	(III) $\text{s}{{\text{p}}^{3}}\text{ }\!\!~\!\!\text{ }{{\text{d}}^{2}}$
(D) ${{\left[ \text{Ni}{{(\text{CN})}_{4}} \right]}^{2-}}$	(IV) $\text{ds}{{\text{p}}^{2}}$

Choose the correct answer from the options given below :

(A) $\left[\mathrm{CoF}_{6}\right]^{-3}$

\mathrm{Co}^{3+} \rightarrow 3 \mathrm{~d}^{6}

(B) $\left[\mathrm{NiCl}_{4}\right]^{2-}$

$\mathrm{Ni}^{2+} \rightarrow 3 \mathrm{~d}^{8}$

$\mathrm{Co}^{3+} \rightarrow 3 \mathrm{~d}^{6}$

(D) $\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}$

\mathrm{Ni}^{2+} \rightarrow 3 \mathrm{~d}^{8}

Answer key and solution verified before publishing.

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