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Friday, 9 October

JEE Main 2025 · ChemistryNumerical answerNumerical valueMediumMulti-step

JEE Main 4 April 2025, Shift 2, Chemistry Q75

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

A metal complex with a formula MCl4⋅3NH3\mathrm{MCl_4\cdot3NH_3} is involved in sp3d2\mathrm{sp^3d^2} hybridisation. It upon reaction with excess of AgNO3\mathrm{AgNO_3} solution gives 'x' moles of AgCl. Consider 'x' is equal to the number of lone pairs of electron present in central atom of BrF5\mathrm{BrF_5}. Then the number of geometrical isomers exhibited by the complex is __________.

Official answer

2

NTA final key.

Chapter
Coordination Compounds
Topic
Coordination Isomerism
Idea tested
Facial and Meridional Isomerism in MA3B3

Same idea in other shifts

Asked 3× in all
  1. 11 Apr 2023, Shift 1 · Q69Which of the following complex has a possibility to exist as meridional isomer?EasySingle correct
  2. 8 Jan 2020, Shift 1 · Q37The complex that can show facfac- and mermer- isomers is :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 42 of the 174 JEE Main shifts held from 2017 to 2026.