JEE Main 2024Chemistryd and f Block ElementsEasyMCQ

JEE Main 2024d and f Block Elements Question with Solution

JEE Main 2024 (30 Jan Shift 1)

Question

Match List-I with List-II

  List I (Species)   List II (Electronic distribution)
A. Cr+2 i. 3d8
B. Mn+ ii. 3d34s1
C. Ni+2 iii. .3d4
D. V+ iv. 3d54s1

Choose the correct answer from the options given below:

Choose an option

Show full solutionCorrect option: B
Correct answer
B(A)-III, (B) - IV, (C) - I, (D)-II

Step-by-step explanation

Electrons must be removed from the outermost orbital to form an ion.

The electronic configurations of the elements are as follows,

Cr24[Ar]3 d54s1; Cr2+[Ar]3d4

Mn25[Ar]3d54s2;Mn+[Ar]3d5 4s1

Ni28[Ar]3d84s2; Ni2+[Ar]3d8

 23V[Ar] 3d34s2; V+[Ar]3d34s1

Hence option B is the answer.

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About this question

This is a previous-year question from JEE Main 2024, covering the d and f Block Elements chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.