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Friday, 9 October

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JEE Main 2021 · ChemistryMultiple choiceSingle correctMediumRecall

JEE Main 25 July 2021, Shift 1, Chemistry Q37

Question 37 of 90 in this shift, Chemistry question 7 of 30, Section A.

Which one of the following compounds of Group-14 elements is not known ?

(1) $\mathrm{[SiF_6]^{2-}}$
(2) $\mathrm{[SiCl_6]^{2-}}$ Official answer
(3) $\mathrm{[GeCl_6]^{2-}}$
(4) $\mathrm{[Sn(OH)_6]^{2-}}$

Official answer

Option 2

NTA final key.

Chapter: The p-Block Elements
Topic: No close match in our taxonomy
Idea tested: No close match in our taxonomy

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.