JEE Main 2023 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 11 April 2023, Shift 1, Chemistry Q70

Question 70 of 90 in this shift, Chemistry question 10 of 30, Section A.

The set which does not have ambidentate ligand(s) is

(1) $\mathrm{EDTA^{4-}, NCS^-, C_2O_4^{2-}}$
(2) $\mathrm{NO_2^-, C_2O_4^{2-}, EDTA^{4-}}$
(3) $\mathrm{C_2O_4^{2-}}$ , ethylene diammine, $\mathrm{H_2O}$ Official answer
(4) $\mathrm{C_2O_4^{2-}, NO_2^-, NCS^-}$

Official answer

Option 3

NTA final key.

Chapter: Coordination Compounds
Topic: Coordination Isomerism
Idea tested: Ambidentate Ligands in Linkage Isomerism

Same idea in other shifts

Asked 4× in all

9 Apr 2024, Shift 1 · Q88Number of ambidentate ligands among the following is ________. $\mathrm{NO_2^-, SCN^-, C_2O_4^{2-}, NH_3, CN^-, SO_4^{2-}, H_2O}$ .EasyNumerical value
6 Apr 2023, Shift 1 · Q88Number of ambidentate ligands in a representative metal complex [ M(en)(SCN) $_4$ ] is ________. [en = ethylenediamine]EasyNumerical value
28 Jul 2022, Shift 1 · Q89Total number of relatively more stable isomer(s) possible for octahedral complex $\mathrm{[Cu(en)_2(SCN)_2]}$ will be __________.HardNumerical 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 42 of the 174 JEE Main shifts held from 2017 to 2026.