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NEET CHEMISTRYGeneralMedium

Question

What fraction of one edge centred octahedral void lies in one unit cell of fcc?

1

12\frac{1}{2}

2

13\frac{1}{3}

3

14\frac{1}{4}

4

112\frac{1}{12}

Step-by-Step Solution

In an fcc unit cell, octahedral voids are located at the body center (1) and at the center of each of the 12 edges. Each edge-centered octahedral void is shared by 4 adjacent unit cells. Therefore, the fraction of one edge-centered octahedral void that lies within one unit cell is 14\frac{1}{4}.

Exam Context & Concepts Covered

This question aligns with the NEET CHEMISTRY syllabus, specifically targeting concepts from General. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

CHEMISTRYfractioncentredoctahedral

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