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AIIMS 2012
Exam
AIIMS
Year
2012
Subject
Chemistry
Chapter
Solid State

AIIMS 2012 · Chemistry · Solid State

In b c c structure contribution of corner and central atom is

In bccb c c structure contribution of corner and central atom is

Options

  1. A18,1\frac{1}{8}, 1
  2. B14,18\frac{1}{4}, \frac{1}{8}
  3. C18,12\frac{1}{8}, \frac{1}{2}
  4. D1,121, \frac{1}{2}

Correct answer

A. 18,1\frac{1}{8}, 1

Step-by-step solution

bcc has eight atoms at corners and each is shared by 8 unit cells so that the contribution of each atom at corner is 18\frac{1}{8}. For central atom the contribution is 1 .
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