JEE Main 2023ChemistryStructure of AtomEasyMCQ

JEE Main 2023 — Structure of Atom Question with Solution

JEE Main 2023 (12 Apr Shift 1)

Question

Given below are two statement : one is labelled as Assertion A and the other is labelled as Reason R

Assertion A : 5f electron can participate in bonding to a far greater extent than 4f electrons

Reason R : 5f orbitals are not as buried as 4f orbitals

In the light of the above statements, choose the correct answer from the options given below

Choose an option

Show full solutionCorrect option: B
Correct answer
BBoth A and R are true and R is the correct explanation of A

Step-by-step explanation

The distance between the nucleus and 5f orbital is more than the distance between the nucleus and 4f orbital. Hence the hold of nucleus on valence electron decrease in 5f orbital. 5f orbital not buried as 4f oribitals so electron present in 5f orbital experience less nuclear attraction than electron present in 4f orbital. Hence electrons of 5f orbital can take part in bonding to far great extent.

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About this question

This is a previous-year question from JEE Main 2023, covering the Structure of Atom 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.