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MHT CET202616 April 2026Morning ShiftChemistrySolid StateActual

A compound forms hcp structure. What is the number of tetrahedral voids formed in 0.8 mol of it.

Options

  1. A4.818 10²³
  2. B9.635 10²³
  3. C7.227 10²³
  4. D2.410 10²³

Correct answer

B. 9.635 10²³

Step-by-step solution

Number of atoms in 0.8 mol of the compound is given by 0.8 N_A . Number of atoms = 0.8 6.022 10²³ = 4.8176 10²³ In a close-packed structure, the number of tetrahedral voids is twice the number of atoms. Number of tetrahedral voids = 2 4.8176 10²³ = 9.6352 10²³ Answer: 9.635 10²³

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