MEDIUMMCQ SINGLENEET ChemistryInorganic ChemistrySolid statePrevious Year Questions

The number of tetrahedral and octahedral voids in a CCP array of 100 atoms are respectively (Kerala CEE 2014)

A.200 and 100✓ Correct

B.100 and 200

C.200 and 200

D.100 and 100

Explanation

The close packed structure has both octahedral and tetrahedral voids. For n atoms, there are 2n tetrahedral voids and n octahedral voids. For 100 atoms, there will be 200 tetrahedral voids and 100 octahedral voids.

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