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MHT CET · Chemistry · Solid State

What is minimum number of spheres required to develop a tetrahedral void?

  1. A 2
  2. B 4
  3. C 6
  4. D 3
Verified Solution

Answer & Solution

Correct Answer

(B) 4

Step-by-step Solution

Detailed explanation

A tetrahedral void is a type of interstitial space formed in a close-packed arrangement of spheres. In order to create a tetrahedral void, four spheres are required. The void is formed between these four spheres and the surrounding spheres in a tetrahedral geometry.
- In a close-packed structure like FCC (Face-Centered Cubic) or HCP (Hexagonal Close-Packed), a tetrahedral void is formed when one sphere is surrounded by four others, and the void is the empty space at the center of this arrangement.
Thus, 4 spheres are the minimum number required to create a tetrahedral void.