JEE Main 2021 · ChemistryNumerical answerNumerical valueEasyRecall

JEE Main 24 February 2021, Shift 1, Chemistry Q52

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

The coordination number of an atom in a body-centered cubic structure is __________. [Assume that the lattice is made up of atoms.]

Official answer

NTA final key.

Chapter: The Solid State
Topic: Crystal Lattices
Idea tested: BCC Neighbor Distances

Same topic in other shifts

All Crystal Lattices questions

6 Apr 2023, Shift 1 · Q61A compound is formed by two elements X and Y. The element Y forms cubic close packed arrangement and those of element X occupy one third…MediumSingle correct
6 Apr 2023, Shift 2 · Q81Number of crystal systems from the following where body centred unit cell can be found, is ____________ Cubic, tetragonal, orthorhombic,…MediumNumerical value
10 Apr 2023, Shift 2 · Q62The correct relationships between unit cell edge length 'a' and radius of sphere 'r' for face-centred and body-centred cubic structures…EasySingle correct
11 Apr 2023, Shift 1 · Q82An atomic substance A of molar mass $12\ \mathrm{g\ mol^{-1}}$ has a cubic crystal structure with edge length of 300 pm. The no. of atoms…MediumNumerical value
13 Apr 2023, Shift 2 · Q82Sodium metal crystallizes in a body centred cubic lattice with unit cell edge length of 4 Å. The radius of sodium atom is ______…EasyNumerical value
15 Apr 2023, Shift 1 · Q61Which of the following expressions is correct in case of a CsCl unit cell (edge length 'a')?EasySingle 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.