JEE Main 2025 (Online) 29th January Morning Shift | Coordination Compounds Question 5 | Chemistry

List - I (Complex)	List - II (Hybridisation & Magnetic characters)
(A) [MnBr₄]^2-	(I) d²sp³ & diamagnetic
(B) [FeF₆]^3-	(II) sp³d² & paramagnetic
(C) [Co(C₂O₄)₃]^3-	(III) sp³ & diamagnetic
(D) [Ni(CO)₄]	(IV) sp³ & paramagnetic

Choose the correct answer from the options given below :

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

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

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

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

JEE Main 2025 (Online) 28th January Evening Shift

MCQ (Single Correct Answer)

-1

Match List - I with List - II.

List - I (Complex)	List - II (Hybridisation of central metal ion)
(A) [CoF₆]^3-	(I) d²sp³
(B) [NiCl₄]^2-	(II) sp³
(C) [Co(NH₃)₆]³⁺	(III) sp³d²
(D) [Ni(CN)₄]^2-	(IV) dsp²

Choose the correct answer from the options given below:

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

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

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

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

JEE Main 2025 (Online) 24th January Evening Shift

MCQ (Single Correct Answer)

-1

The conditions and consequence that favours the $t_{2 \mathrm{~g}}{ }^3 \mathrm{e}_{\mathrm{g}}{ }^1$ configuration in a metal complex are :

strong field ligand, low spin complex

strong field ligand, high spin complex

weak field ligand, high spin complex

weak field ligand, low spin complex

JEE Main 2025 (Online) 24th January Evening Shift

MCQ (Single Correct Answer)

-1

When Ethane-1,2-diamine is added progressively to an aqueous solution of Nickel (II) chloride, the sequence of colour change observed will be:

Pale Blue $\rightarrow$ Blue $\rightarrow$ Green $\rightarrow$ Violet

Pale Blue $\rightarrow$ Blue $\rightarrow$ Violet $\rightarrow$ Green

Green $\rightarrow$ Pale Blue $\rightarrow$ Blue $\rightarrow$ Violet

Violet $\rightarrow$ Blue $\rightarrow$ Pale Blue $\rightarrow$ Green

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Questions Asked from Coordination Compounds (MCQ (Single Correct Answer))

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