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AIIMS2019ChemistrySolid State

The number of tetrahedral voids present in 0.5 mole of h c p crystal structure are

Options

  1. A3.6 10²³
  2. B9 10²³
  3. C3.6 10²⁴
  4. D6.02 10²³

Correct answer

C. 3.6 10²⁴

Step-by-step solution

For hcp, Z=6 Tetrahedral voids =2 Z=2 6=12 Tetrahedral voids present in 0.5 ~mol =12 0.5 ~mol =6 N_A=6 6.02 10²³=3.6 10²⁴

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