1
JEE Main 2024 (Online) 31st January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Select the option with correct property -

A
$$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$$ and $$\left[\mathrm{NiCl}_4\right]^{2-}$$ both Paramagnetic
B
$$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$$ and $$\left[\mathrm{NiCl}_4\right]^{2-}$$ both Diamagnetic
C
$$\left[\mathrm{NiCl}_4\right]^{2-}$$ Diamagnetic, $$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$$ Paramagnetic
D
$$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$$ Diamagnetic, $$\left[\mathrm{NiCl}_4\right]^{2-}$$ Paramagnetic
2
JEE Main 2024 (Online) 31st January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

List - I
(Complex ion)
List - II
(Electronic Configuration)
(A) $$\mathrm{[Cr(H_2O)_6]^{3+}}$$ (I) $$t_{2 g}{ }^2 e_g^0$$
(B) $$\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}$$ (II) $$t_{2 g}{ }^3 e_g{ }^0$$
(C) $$\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$$ (III) $$t_{2 g}{ }^3 e_g{ }^2$$
(D) $$\left[\mathrm{V}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}$$ (IV) $$t_{2 g}{ }^6 e_g^2$$

Choose the correct answer from the options given below:

A
A-IV, B-I, C-II, D-III
B
A-III, B-II, C-IV, D-I
C
A-II, B-III, C-IV, D-I
D
A-IV, B-III, C-I, D-II
3
JEE Main 2024 (Online) 31st January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

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:

A
B, C only
B
B, D only
C
A, C only
D
A, D only
4
JEE Main 2024 (Online) 30th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The coordination geometry around the manganese in decacarbonyldimanganese $$(0)$$ is

A
Trigonal bipyramidal
B
Square pyramidal
C
Square planar
D
Octahedral
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