JEE Main 2020Chemistryd and f Block ElementsMediumMCQ

JEE Main 2020d and f Block Elements Question with Solution

JEE Main 2020 (06 Sep Shift 1)

Question

The lanthanoid that does NOT show + 4 oxidation state is:

Choose an option

Show full solutionCorrect option: C
Correct answer
CEu

Step-by-step explanation

   Eu(z=63)=4F76s2
Dy(z=66)=4F106s2
Tb(z=65)=4F96s2
Ce(58)=4F15d16s2
Dy, Tb and Ce show +4 oxidation state while Eu do not show +4 oxidation state.

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About this question

This is a previous-year question from JEE Main 2020, 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.