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Saturday, 31 October

JEE Main 2023 · ChemistryMultiple choiceSingle correctMediumRecall

JEE Main 6 April 2023, Shift 2, Chemistry Q66

Question 66 of 90 in this shift, Chemistry question 6 of 30, Section A.

Structures of BeCl2\mathrm{BeCl_2} in solid state, vapour phase and at very high temperature respectively are:
  1. (1)Dimeric, Polymeric, Monomeric
  2. (2)Polymeric, Dimeric, MonomericOfficial answer
  3. (3)Polymeric, Monomeric, Dimeric
  4. (4)Monomeric, Dimeric, Polymeric

Official answer

Option 2

NTA final key.

Chapter
The s-Block Elements
Topic
s-Block Elements
Idea tested
Phase-Dependent Structure of BeCl2

Same idea in other shifts

Asked 2× in all
  1. 4 Aug 2021, Shift 2 · Q35Given below are two statements : Statement-I : The chlorides of both beryllium and aluminium have structures in which chlorobridges are…MediumTwo statements

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.