JEE Main 2022 · ChemistryMultiple choiceSingle correctEasyConceptual

JEE Main 29 July 2022, Shift 1, Chemistry Q69

Question 69 of 90 in this shift, Chemistry question 9 of 30, Section A.

In following pairs, the one in which both transition metal ions are colourless is :

(1) $\mathrm{Sc^{3+}}$ , $\mathrm{Zn^{2+}}$ Official answer
(2) $\mathrm{Ti^{4+}}$ , $\mathrm{Cu^{2+}}$
(3) $\mathrm{V^{2+}}$ , $\mathrm{Ti^{3+}}$
(4) $\mathrm{Zn^{2+}}$ , $\mathrm{Mn^{2+}}$

Official answer

Option 1

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

8 Apr 2026, Shift 2 · Q60Given below are two statements : Statement I : The number of pairs among $[\mathrm{Ti^{4+}, V^{2+}}]$ , $[\mathrm{V^{2+}, Mn^{2+}}]$ ,…MediumTwo statements
1 Feb 2024, Shift 2 · Q71Which of the following compounds show colour due to d-d transition ?EasySingle correct
30 Jul 2022, Shift 2 · Q58The number of coloured and paramagnetic ions from the following in aqueous solution are ________. $\mathrm{Ti^{3+}}$ , $\mathrm{Co^{2+}}$ ,…MediumNumerical value
3 Aug 2021, Shift 2 · Q38Which one of the following set will give coloured aqueous solution?EasySingle correct
4 Aug 2021, Shift 2 · Q37Ruby and emerald are coloured due to the presence ofEasySingle correct
26 Aug 2021, Shift 1 · Q39Which one of the following when dissolved in water gives coloured solution in nitrogen atmosphere ?EasySingle correct

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.