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Chemistry · d and f Block Elements

JEE Main 2026 — 6 April, Morning Shift — Question 54

The correct statements among the following are : A. Basic vanadium oxide is used in the manufacture of H2SO4\mathrm{H}_{2} \mathrm{SO}_{4}. B. The spin-only magnetic moment value of the transition metal halide employed in ZieglerNatta polymerization is 2.84 BM . C. The p-block metal compound employed in Ziegler-Natta polymerization has the metal in +3 oxidation state. D. The number of electrons present in the outer most 'd' orbital of metal halide employed in Wacker process is 8. Choose the correct answer from the options given below :

  1. Option A:

    A and B only

  2. Option B:

    A, C and D only

  3. Option C:

    C and D only

    Correct
  4. Option D:

    B, C and D only

Answer: C

Step-by-step solution

A. V2O5\mathrm{V}_{2} \mathrm{O}_{5} is amphoteric. It is used in manufacture of H2SO4\mathrm{H}_{2} \mathrm{SO}_{4}. B. Ziegler natta catalyst is TiCl4+4+AlMe3+3\underset{+4}{\mathrm{TiCl}_{4}}+\underset{+3}{\mathrm{AlMe}_{3}}

Ti4+:3 d04 s0n=0μ=0\mathrm{Ti}^{4+}: 3 \mathrm{~d}^{0} 4 \mathrm{~s}^{0} \mathrm{n}=0 \mu=0

C. O.S. of Al is +3 D. PdCl2+2\frac{\mathrm{PdCl}_{2}}{+2} is used in wacker process

Pd2+:4 d85 s0\mathrm{Pd}^{2+}: 4 \mathrm{~d}^{8} 5 \mathrm{~s}^{0}

C and D are correct.

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Paper
6 April, Morning Shift
Subject
Chemistry
Chapter
d and f Block Elements
Topic
Introduction and Properties of Transition Elements
The correct statements among the following are : A. Basic vanadium… | JEE Main 2026 PYQ with Solution · DhiX AI