Chemistry · d and f Block Elements

JEE Main 2024 — 6 April, Shift 2 — Question 64

Arrange the following elements in the increasing order of number of unpaired electrons in it.

(A) Sc

(B) Cr

(C) V

(D) Ti

(E) Mn

Choose the correct answer from the options given below:

  1. Option A:

    (C) << (E) << (B) << (A) << (D)

  2. Option B:

    (( B )<()<( C )<)< (D) << (E) << (A)

  3. Option C:

    (A) << (D) << (C) << (B) << €

  4. Option D:

    (( A) << (D) << (C) << (E) << (B)

    Correct

Answer: D

Step-by-step solution

Unpaired electron

Sc[Ar]4 s23 d1\mathrm{Sc}[\mathrm{Ar}] 4 \mathrm{~s}^{2} 3 \mathrm{~d}^{1} & 1

Cr[Ar]4 s13 d5\mathrm{Cr}[\mathrm{Ar}] 4 \mathrm{~s}^{1} 3 \mathrm{~d}^{5} & 6

 V[Ar]4 s23 d3\mathrm{~V}[\mathrm{Ar}] 4 \mathrm{~s}^{2} 3 \mathrm{~d}^{3} & 3

Ti:[Ar]4 s23 d2\mathrm{Ti}:[\mathrm{Ar}] 4 \mathrm{~s}^{2} 3 \mathrm{~d}^{2} & 2

Mn:[Ar]4 s23 d5\mathrm{Mn}:[\mathrm{Ar}] 4 \mathrm{~s}^{2} 3 \mathrm{~d}^{5} & 5

Answer key and solution verified before publishing.

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Exam
JEE Main 2024
Subject
Chemistry
Chapter
d and f Block Elements
Topic
Introduction and Properties of Transition Elements
Arrange the following elements in the increasing order of number of… | JEE Main 2024 PYQ with Solution · DhiX AI