1.

Which is not true about the voids formed in three dimensional hexagonal close-packed structure-

Answer»

a tetrahedral void is formed when a sphere of the second layer is PRESENT above TRIANGULAR void in the first layer
all the triangular voids are not covered by the spheres of the second layer
tetrahedral voids are formed when the triangular voids in the second layer LIE above the triangular voids in the first layer and the triangular shapes of these voids do not overlap
octahedral voids are formed when the triangular voids in the second layer EXACTLY overlap with SIMILAR voids in the first layer

Answer :C::D


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