Medium INTEGER +4 / -1 PYQ · JEE Mains 2021

The number of octahedral voids per lattice site in a lattice is _________. (Rounded off to the nearest integer)

Answer (integer) 1

Solution

<p>Let us assume, the crystal has fcc or ccp lattice which has octahedral voids.</p> <p>Number of lattice sites occupied = 8 corner + 6 face centres = 14</p> <p>Number of octahedral voids = 12 edge centres + 1 body centre = 13</p> <p>Number of octahedral void(s) per lattice site</p> <p>$= {{13} \over {14}} = 0.928 \simeq 1$</p>

About this question

Subject: Chemistry · Chapter: States of Matter · Topic: Gas Laws

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