JEE Main 2023 — d and f Block Elements Question with Solution
JEE Main 2023 (30 Jan Shift 1)
Question
During the qualitative analysis of using dilute gas is evolved which turns solution (acidified with dilute ):
Choose an option
Show full solutionCorrect option: C
Correct answer
CGreen
Step-by-step explanation
On treating sulphite () with warm dilute , gas is evolved which is suffocating with the smell of burning sulphur.
The gas turns potassium dichromate paper acidified with dil. , green.
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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.