JEE Main 2026 · ChemistryNumerical answerNumerical valueMediumApplication

JEE Main 2 April 2026, Shift 2, Chemistry Q74

Question 74 of 75 in this shift, Chemistry question 24 of 25, Section B.

Number of paramagnetic ions among the following d- and f-block metal ions is __________.

Mn^{2+}, Cu^{2+}, Zn^{2+}, Yb^{2+}, Sc^{3+}, La^{3+}, Gd^{3+}, Lu^{3+}, Ti^{4+}, Ce^{4+}

(Atomic number of Mn = 25, Cu = 29, Zn = 30, Yb = 70, Sc = 21, La = 57, Gd = 64, Lu = 71, Ti = 22, Ce = 58)

Official answer

NTA final key.

Chapter: The d- and f-Block Elements
Topic: d-Block Elements
Idea tested: Spin-only Magnetism

Same idea in other shifts

Asked 6× in all

4 Apr 2026, Shift 2 · Q62Consider $|x|$ is the difference in oxidation states of Mn in highest manganese fluoride and highest manganese oxide. The ions with $|x|$ …MediumOther
3 Apr 2025, Shift 1 · Q62The metal ions that have the calculated spin-only magnetic moment value of 4.9 B.M. are : A. $\mathrm{Cr^{2+}}$ B. $\mathrm{Fe^{2+}}$ C.…EasyOther
8 Apr 2025, Shift 2 · Q58The correct decreasing order of spin only magnetic moment values (BM) of $\mathrm{Cu^+}$ , $\mathrm{Cu^{2+}}$ , $\mathrm{Cr^{2+}}$ and…EasySingle correct
6 Apr 2024, Shift 2 · Q86Among $\mathrm{VO_2^+}$ , $\mathrm{MnO_4^-}$ and $\mathrm{Cr_2O_7^{2-}}$ , the spin-only magnetic moment value of the species with least…MediumNumerical value
8 Apr 2024, Shift 1 · Q86The 'spin only' magnetic moment value of $\mathrm{MO_4^{2-}}$ is ____________ BM. (Where M is a metal having least metallic radii. among…MediumNumerical value

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 42 of the 174 JEE Main shifts held from 2017 to 2026.