NEET Chemistry The Solid State Questions Solved

NEET - 2008

If 'a' stands for the edge length of the cubic systems: simple cubic, body centered cubic and face centered cubic, then the ratio of radii of the spheres in these systems will be respectively,

(a) 12a: 34a:122a                      (b) 12a:3a:12a(c) 12a:32a:22a                          (d) 1a:3a:2a

Concept Videos :-

#0 | Introduction to Solid State
#1 | Introduction to Unit Cell
#2 | Types of Unit Cell
#3 | Simple Cubic Unit Cell: Rank (z)
#6 | Body Centred Cubic (BCC) Unit Cell
#8 | Face Centred Cubic (FCC) Unit Cell
#12 | Hexagonal Close Packing Arrangement
#13 | Cubic Close Packing Arrangement
#14 | Layer Arrangement in FCC
#25 | Ionic Structure of Rock Salt

Concept Questions :-

Introduction and Type of Crystal System

For simple cubic,

       a=2r  ... r= a/2

For body centered cubic

     a= 4r/3  ... r = 3a/4

For face centered cube,

    a=22r  ... r = a/22

Difficulty Level:

  • 73%
  • 10%
  • 13%
  • 6%
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