JEE Main 2020 — d and f Block Elements Question with Solution
JEE Main 2020 (06 Sep Shift 1)
Question
The set that contains atomic numbers of only transition elements, is :
Choose an option
Show full solutionCorrect option: B
Correct answer
B21,25,42,72
Step-by-step explanation
A transition element is defined as the one which has incompletely filled d orbitals in its ground state or in any one of the oxidation state. are not transition element.
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 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.