JEE Main 2021 — D And F Block Elements Question with Solution
From: JEE Main 2021 (Online) 31st August Morning Shift
Question
Which one of the following lanthanides exhibits +2 oxidation state with diamagnetic nature? (Given Z for Nd = 60, Yb = 70, La = 57, Ce = 58)
Choose an option
Show full solutionCorrect option: B
Correct answer
BYb
Step-by-step explanation
Yb (70) = 4f14 6s2
Yb+2 = 4f14 6s0
All the electrons are paired hence Yb+2 is diamagnetic.
Yb+2 = 4f14 6s0
All the electrons are paired hence Yb+2 is diamagnetic.
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the D And F Block Elements chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2021, 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.