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Friday, 9 October

JEE Main 2026 · ChemistryNumerical answerNumerical valueHardMulti-step

JEE Main 2 April 2026, Shift 1, Chemistry Q71

Question 71 of 75 in this shift, Chemistry question 21 of 25, Section B.

5.335.33 g of CrCl3⋅6H2O\mathrm{CrCl_3{\cdot}6H_2O}, which is a 1:31:3 electrolyte, is dissolved in water and is passed through a cation exchanger. The chloride ions in the eluted solution, on treatment with AgNO3\mathrm{AgNO_3} results in 8.618.61 g of AgCl. The ratio of moles of complex reacted and moles of AgCl formed is __________ ×10−2\times10^{-2}. (Nearest integer) [Molar mass in g mol−1\mathrm{g\ mol^{-1}} Cr : 52, Ag : 108, Cl : 35.5, H : 1, O : 16]

Official answer

33

NTA final key.

Chapter
Coordination Compounds
Topic
Coordination Isomerism
Idea tested
Water Loss and Molar Conductivity in Hydrate Isomers

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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.