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Saturday, 31 October

JEE Main · Chemistry · The Solid State

FCC Neighbor Distances

JEE Main asked FCC Neighbor Distances once in the 108 shifts Lumi analysed, on 2 Apr 2017 (offline). It belongs to Crystal Lattices, in The Solid State (Chemistry).

Updated 2026-10-24

Times asked
1
in 1 shift
Years
1 of 8
First asked
2017
the only year
Pattern
Gone quiet
asked once so far

Questions on this idea a shift, by year

2017–2026. Asked in 2017. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.510.83’170’200’210’220’230’240’250’26

Raw count: 2017: 1 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20260 of 9
  • 20250 of 8
  • 20240 of 18
  • 20230 of 12
  • 20220 of 24
  • 20210 of 24
  • 20200 of 12
  • 20171 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Single correct is the usual form. Skill tested: calculation.

  • Closest approach in fcc from edge length

Difficulty

Easy 1Medium 0Hard 0

The question was multiple choice.

Every question

The question

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 2 Apr 2017 (offline) · Q35A metal crystallises in a face centred cubic structure. If the edge length of its unit cell is 'a', the closest approach between two atoms…EasySingle correct

Shift: 2 Apr 2017 (offline).

Same topic

Other ideas in Crystal Lattices

Crystal Lattices has 9 ideas JEE Main has asked; 4 of them came up in more than one question.

Topic analysisChapter analysisAll repeated ideas