JEE Main 2021 · ChemistryNumerical answerNumerical valueEasyCalculation

JEE Main 26 February 2021, Shift 2, Chemistry Q52

Question 52 of 90 in this shift, Chemistry question 22 of 30, Section B.

The number of octahedral voids per lattice site in a lattice is __________. (Rounded off to the nearest integer)

Official answer

NTA final key.

Chapter: The Solid State
Topic: Crystal Lattices
Idea tested: Tetrahedral and Octahedral

Same idea in other shifts

Asked 2× in all

16 Mar 2021, Shift 2 · Q52Ga (atomic mass 70 u) crystallizes in a hexagonal close packed structure. The total number of voids in 0.581 g of Ga is ________…MediumNumerical 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 108 of the 174 JEE Main shifts held from 2017 to 2026.