Question

Which of the following statement is not true about the hexagonal close packing?
(a) The coordination number is 12
(b) It has 74% packing efficiency
(c) Tetrahedral voids of the second layer are covered by the spheres of the third layer
(d) In this is arrangement spheres of the fourth layer are exactly aligned with those of the first layer

Answer 1

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$\text{\underline{The\:correct\:option\:is:}}$ D)


In this is arrangement spheres of the fourth layer are exactly aligned with those of the first layer.


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Answer 2

Answer ⤵⤵

✒(d) In this is arrangement spheres of the fourth layer are exactly aligned with those of the first layer .

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