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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceTwo statementsMediumConceptual

JEE Main 4 August 2021, Shift 2, Chemistry Q35

Question 35 of 90 in this shift, Chemistry question 5 of 30, Section A.

Given below are two statements : Statement-I : The chlorides of both beryllium and aluminium have structures in which chlorobridges are present in vapour phase. Statement-II : Chlorides of both beryllium and aluminium are insoluble in organic solvents and are strong Lewis acids. Choose the most appropriate answer :
  1. (1)Both Statement-I and Statement-II are true.
  2. (2)Both Statement-I and Statement-II are false.
  3. (3)Statement-I is true but Statement-II is false.Official answer
  4. (4)Statement-I is false but Statement-II is true.

Official answer

Option 3

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. 6 Apr 2023, Shift 2 · Q66Structures of BeCl2\mathrm{BeCl_2} in solid state, vapour phase and at very high temperature respectively are:MediumSingle correct

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.