1
JEE Main 2025 (Online) 22nd January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The products formed in the following reaction sequence are :

JEE Main 2025 (Online) 22nd January Morning Shift Chemistry - Compounds Containing Nitrogen Question 18 English

A
JEE Main 2025 (Online) 22nd January Morning Shift Chemistry - Compounds Containing Nitrogen Question 18 English Option 1
B
JEE Main 2025 (Online) 22nd January Morning Shift Chemistry - Compounds Containing Nitrogen Question 18 English Option 2
C
JEE Main 2025 (Online) 22nd January Morning Shift Chemistry - Compounds Containing Nitrogen Question 18 English Option 3
D
JEE Main 2025 (Online) 22nd January Morning Shift Chemistry - Compounds Containing Nitrogen Question 18 English Option 4
2
JEE Main 2025 (Online) 22nd January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

From the magnetic behaviour of $\left[\mathrm{NiCl}_4\right]^{2-}$ (paramagnetic) and $\left[\mathrm{Ni}(\mathrm{CO})_4\right]$ (diamagnetic), choose the correct geometry and oxidation state.

A
$\left[\mathrm{NiCl}_4\right]^{2-}: \mathrm{Ni}(0)$, tetrahedral $\left[\mathrm{Ni}(\mathrm{CO})_4\right]: \mathrm{Ni}(0)$, square planar
B
$\left[\mathrm{NiCl}_4\right]^{2-}: \mathrm{Ni}^{\mathrm{II}}$, tetrahedral $\left[\mathrm{Ni}(\mathrm{CO})_4\right]: \mathrm{Ni}(0)$, tetrahedral
C
$\left[\mathrm{NiCl}_4\right]^{2-}: \mathrm{Ni}^{\mathrm{II}}$, tetrahedral $\left[\mathrm{Ni}(\mathrm{CO})_4\right]: \mathrm{Ni}^{I I}$, square planar
D
$\left[\mathrm{NiCl}_4\right]^{2-}: \mathrm{Ni}^{\mathrm{II}}$, square planar $\left[\mathrm{Ni}(\mathrm{CO})_4\right]: \mathrm{Ni}(0)$, square planar
3
JEE Main 2025 (Online) 22nd January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The compounds which give positive Fehling's test are :

JEE Main 2025 (Online) 22nd January Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 24 English

Choose the correct answer from the options given below :

A
(A), (C) and (D) Only
B
(A), (B) and (C) Only
C
(A), (D) and (E) Only
D
(C), (D) and (E) Only
4
JEE Main 2025 (Online) 22nd January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List-I with List-II.

List - I List - II
(A) $\mathrm{Al}^{3+}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}$ (I) Ionisation Enthalpy
(B) $\mathrm{B}<\mathrm{C}<\mathrm{O}<\mathrm{N}$ (II) Metallic character
(C) $\mathrm{B}<\mathrm{Al}<\mathrm{Mg}<\mathrm{K}$ (III) Electronegativity
(D) $\mathrm{Si}<\mathrm{P}<\mathrm{S}<\mathrm{Cl}$ (IV) Ionic radii

Choose the correct answer from the options given below :

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