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JEE Main 2021 · ChemistryMultiple choiceSingle correctMediumConceptual

JEE Main 17 March 2021, Shift 1, Chemistry Q37

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

Which of the following compound CANNOT act as a Lewis base ?

(1) $\mathrm{ClF_3}$
(2) $\mathrm{PCl_5}$ Official answer
(3) $\mathrm{NF_3}$
(4) $\mathrm{SF_4}$

Official answer

Option 2

NTA final key.

Chapter: Chemical Bonding and Molecular Structure
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 108 of the 174 JEE Main shifts held from 2017 to 2026.