Match List - I with List - II. ( array ll & - I & & - II & (Complex) & & (Hybridisation & Magnetic characters) (A) & [MnBr_4]^ 2- & (I) & d^2 s^3 & diamagnetic (B) & [FeF_6]^ 3- & (II) & sp^3 d^2 & paramagnetic (C) &

Correct answer: A. (A) (-(IV),(B)-( II ),(C)-( I ),(D)-( III )) aligned & (A) [M n B r_4]^ 2- & Mn^ +2 [Ar] 3 ~d^5 aligned In presence of ligand field sp^3 hybridization, paramagnetic in nature (B) [FeF_6]^ 3- Fe^ +3 [Ar] 3 ~d^5 In presence of ligand field sp^3 ~d^2 hybridization, paramagnetic in nature (C) [Co(C_2 O_4)_3]^ 3- Co^ +3 [Ar] 3 ~d^6 In presence of ligand field d^2 sp^3 hybridization, diamagnetic in nature (D) [Ni(CO)_4]Ni^0 [Ar] 3 ~d^8 4 ~s^2 In presence of ligand field sp^3 hybridization, diamagnetic in nature

JEE Main 202529 JanuaryMorning Shift

Exam: JEE Main
Year: 2025
Date: 29 January
Shift: Morning Shift
Subject: Chemistry
Chapter: Coordination Compounds

JEE Main 2025 · 29 January · Morning Shift · Chemistry · Coordination Compounds

Match List - I with List - II. ( array ll & - I & & - II &...

Match List - I with List - II. (

\begin{array}{ll} & \textList - I & & \textList - II \\ & \text{ (Complex) } & & \text{ (Hybridisation & Magnetic characters) } \\ \text{(A)} & \left[\mathrm{MnBr}_4\right]^{2-} & \text{(I)} & d^2 s^3 \text{ & diamagnetic} \\ \text{(B)} & \left[\mathrm{FeF}_6\right]^{3-} & \text{(II)} & \mathrm{sp}^3 \mathrm{ d}^2 \text{ & paramagnetic} \\ \text{(C)} & \left[\mathrm{Co}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-} & \text{(III)} & \mathrm{sp}^3 \text{ & diamagnetic} \\ \text{(D)} & \left[\mathrm{Ni}(\mathrm{CO})_4\right] & \text{(IV)} & \mathrm{sp}^3 \text{ & paramagnetic} \end{array}

) Choose the correct answer from the options given below : Match List - I with List - II. ( array ll & - I & & - II & (Complex) & & (Hybridisation & Magnetic characters) (A) &

Options

A(A) (-(\mathrm{IV}),(\mathrm{B})-( $\mathrm{II}$ ),(\mathrm{C})-( $\mathrm{I}$ ),(\mathrm{D})-( $\mathrm{III}$ ))
B((\mathrm{A})-( $\mathrm{III}$ ),(\mathrm{B})-( $\mathrm{I}$ ),(\mathrm{C})-( $\mathrm{II}$ ),(\mathrm{D})-(\mathrm{IV}))
C(A) (-(\mathrm{IV}),(\mathrm{B})-( $\mathrm{I}$ ),(\mathrm{C})-( $\mathrm{II}$ ),(\mathrm{D})-( $\mathrm{III}$ ))
D((\mathrm{A})-( $\mathrm{III}$ ),(\mathrm{B})-( $\mathrm{II}$ ),(\mathrm{C})-( $\mathrm{I}$ ),(\mathrm{D})-(\mathrm{IV}))

Correct answer

A. (A) (-(\mathrm{IV}),(\mathrm{B})-( $\mathrm{II}$ ),(\mathrm{C})-( $\mathrm{I}$ ),(\mathrm{D})-( $\mathrm{III}$ ))

Step-by-step solution

\begin{aligned} & \text{ (A) }\left[\mathbf{M n B r}_4\right]^{2-} \\ & \mathrm{Mn}^{+2} \Rightarrow[\mathrm{Ar}] 3 \mathrm{~d}^5 \end{aligned}

In presence of ligand field Match List - I with List - II. ( array ll & - I & & - II & (Complex) & & (Hybridisation & Magnetic characters) (A) &

\Rightarrow \mathrm{sp}^3

hybridization, paramagnetic in nature (B)

\left[\mathrm{FeF}_6\right]^{3-}\mathrm{Fe}^{+3} \Rightarrow[\mathrm{Ar}] 3 \mathrm{~d}^5

In presence of ligand field< img src="https://cdn-question-pool.getmarks.app/pyq/jee_main/y10TyOKG-U3RTkeCvMTTLyYSHOIIJiDbtgz8oSi4Qq8.original.fullsize.png">

\Rightarrow \mathrm{sp}^3 \mathrm{~d}^2

hybridization, paramagnetic in nature (C)

\left[\mathrm{Co}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\mathrm{Co}^{+3} \Rightarrow[\mathrm{Ar}] 3 \mathrm{~d}^6

In presence of ligand field Match List - I with List - II. ( array ll & - I & & - II & (Complex) & & (Hybridisation & Magnetic characters) (A) &

\Rightarrow d^2 \mathrm{sp}^3

hybridization, diamagnetic in nature (D)

\left[\mathrm{Ni}(\mathrm{CO})_4\right]\mathrm{Ni}^0 \Rightarrow[\mathrm{Ar}] 3 \mathrm{~d}^8 4 \mathrm{~s}^2

In presence of ligand field Match List - I with List - II. ( array ll & - I & & - II & (Complex) & & (Hybridisation & Magnetic characters) (A) &

\Rightarrow \mathrm{sp}^3

hybridization, diamagnetic in nature

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