JEE Main 2021Chemistryd and f Block ElementsEasyMCQ

JEE Main 2021d and f Block Elements Question with Solution

JEE Main 2021 (24 Feb Shift 2)

Question

What is the correct order of the following elements with respect to their density?

Choose an option

Show full solutionCorrect option: C
Correct answer
CZn<Cr<Fe<Co<Cu

Step-by-step explanation

 Among the transition series, the trend in density will be reverse of atomic radii, i.e. density increase remains almost the same and then decreases along the period.

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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.