JEE Main 2024 · ChemistryNumerical answerNumerical valueMediumApplication

JEE Main 9 April 2024, Shift 1, Chemistry Q87

Question 87 of 90 in this shift, Chemistry question 27 of 30, Section B.

Number of colourless lanthanoid ions among the following is ________.

\mathrm{Eu^{3+}, Lu^{3+}, Nd^{3+}, La^{3+}, Sm^{3+}}

Official answer

NTA final key.

Chapter: The d- and f-Block Elements
Topic: f-Block Elements
Idea tested: Identifying Colorless Lanthanide Ions

Same topic in other shifts

All f-Block Elements questions

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