JEE Main 2024 · ChemistryMultiple choiceSingle correctEasyConceptual

JEE Main 1 February 2024, Shift 2, Chemistry Q71

Question 71 of 90 in this shift, Chemistry question 11 of 30, Section A.

Which of the following compounds show colour due to d-d transition ?

(1) $\mathrm{KMnO_4}$
(2) $\mathrm{K_2Cr_2O_7}$
(3) $\mathrm{K_2CrO_4}$
(4) $\mathrm{CuSO_4.5H_2O}$ Official answer

Official answer

Option 4

NTA final key.

Chapter: The d- and f-Block Elements
Topic: d-Block Elements
Idea tested: Color and Catalysis

Same idea in other shifts

Asked 7× in all

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.