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  5. The Solid State / ठोस प्रावस्था

12th Class Chemistry The Solid State / ठोस प्रावस्था

  • question_answer 95)
      The number of tetrahedral voids per unit cell in NaCI. crystal is........... (a) 4 (b) 8 (c) twice the number of octahedral voids (d) four times the number of octahedral voids

    Answer:

                                                                                             (b, c) NaCI has a rock salt type structure having fee arrangement. Total number of atoms per unit cell = 4 Number of tetrahedral voids = 2 x 4 = 8     Number of octahedral voids = 4 Hence, (b) and (c) are correct choices.


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