JEE Main 2020 · ChemistryMultiple choiceSingle correctMediumApplication

JEE Main 3 September 2020, Shift 1, Chemistry Q36

Question 36 of 75 in this shift, Chemistry question 11 of 25.

The complex that can show optical activity is :

(1) $cis$ - $\mathrm{[Fe(NH_3)_2(CN)_4]^-}$
(2) $cis$ - $\mathrm{[CrCl_2(ox)_2]^{3-}}$ (ox = oxalate)Official answer
(3) $trans$ - $\mathrm{[Fe(NH_3)_2(CN)_4]^-}$
(4) $trans$ - $\mathrm{[Cr(Cl_2)(ox)_2]^{3-}}$

Official answer

Option 2

NTA final key (Sep 2020).

Chapter: Coordination Compounds
Topic: Coordination Isomerism
Idea tested: Optical Activity of Cis-M(AA)2B2

Same topic in other shifts

All Coordination Isomerism 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 108 of the 174 JEE Main shifts held from 2017 to 2026.