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Which one of the following statements about packing in solids is incorrect ?

Options

  1. ACoordination number in bcc mode of packing is 8 .
  2. BCoordination number in hep mode of packing is 12 .
  3. CVoid space in hcp mode of packing is 32 % .
  4. DVoid space in ccp mode of packing is 26 % .

Correct answer

C. Void space in hcp mode of packing is 32 % .

Step-by-step solution

The h c p arrangement of atoms occupies 74 % of the available space and thus has 26 % vacant space.

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