JEE Main 2023Chemistryd and f Block ElementsHardMCQ

JEE Main 2023d and f Block Elements Question with Solution

JEE Main 2023 (29 Jan Shift 2)

Question

A solution of CrO5 in amyl alcohol has a....colour

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Show full solutionCorrect option: D
Correct answer
DBlue

Step-by-step explanation

Chromium peroxide CrO5 is a very unstable deep blue compound. It is soluble in water, but rapidly breaks down, and soluble as well as stable in solvents such as diethyl ether, ethyl acetate, amyl alcohol and its esters.

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About this question

This is a previous-year question from JEE Main 2023, 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.