Question:

A crystalline solid $XY_3$ has $ccp$ arrangement for its element $Y. X $ occupies

Updated On: Feb 23, 2024
  • 33% of tetrahedral voids
  • 33% of octahedral voids
  • 66% of tetrahedral voids
  • 66% of octahedral voids
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is B

Solution and Explanation

In ccp arrangement, a unit cell has total 4 particles. To keep formula $X Y_{3}$, number of $X$ particles $=4 / 3=1.33$. Since, in ccp arrangement, octahedral sites $=4$ Therefore, percentage of $X$ particles occupying octahedral sites $=\frac{1.33}{4} \times 100=33 \%$
Was this answer helpful?
0
0

Concepts Used:

Solid State

Solids are substances that are featured by a definite shape, volume, and high density. In the solid-state, the composed particles are arranged in several manners. Solid-state, in simple terms, means "no moving parts." Thus solid-state electronic devices are the ones inclusive of solid components that don’t change their position. Solid is a state of matter where the composed particles are arranged close to each other. The composed particles can be either atoms, molecules, or ions. 

Solid State

Types of Solids:

Based on the nature of the order that is present in the arrangement of their constituent particles solids can be divided into two types;

  • Amorphous solids behave the same as super cool liquids due to the arrangement of constituent particles in short-range order. They are isotropic and have a broad melting point (range is about greater than 5°C).
  • Crystalline solids have a fixed shape and the constituent particles are arranged in a long-range order.