JEE Main 2020 · ChemistryMultiple choiceSingle correctMediumApplication

JEE Main 2 September 2020, Shift 2, Chemistry Q38

Question 38 of 75 in this shift, Chemistry question 13 of 25.

The one that is not expected to show isomerism is :

(1) $[\mathrm{Ni(NH_3)_2Cl_2}]$ Official answer
(2) $[\mathrm{Ni(NH_3)_4(H_2O)_2}]^{2+}$
(3) $[\mathrm{Ni(en)_3}]^{2+}$
(4) $[\mathrm{Pt(NH_3)_2Cl_2}]$

Official answer

Option 1

NTA final key (Sep 2020).

Chapter: Coordination Compounds
Topic: Coordination Isomerism
Idea tested: Absence of Geometrical Isomerism in Tetrahedral Complexes

Same topic in other shifts

All Coordination Isomerism questions

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5 Apr 2026, Shift 2 · Q61Identify the correct statements from the following A. $\mathrm{[Fe(C_2O_4)_3]^{3-}}$ is the most stable complex among…HardOther
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3 Apr 2025, Shift 1 · Q72The number of optical isomers exhibited by the iron complex (A) obtained from the following reaction is ______.…MediumNumerical value
4 Apr 2025, Shift 2 · Q75A metal complex with a formula $\mathrm{MCl_4\cdot3NH_3}$ is involved in $\mathrm{sp^3d^2}$ hybridisation. It upon reaction with excess of…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 108 of the 174 JEE Main shifts held from 2017 to 2026.