TS EAMCET Medical 31 Jul 2022 Shift 2 Paper

In NaCl structure, the correct statements among the following are
A) All octahedral and tetrahedral sites are occupied.
B) Only octahedral sites are occupied.
C) Only tetrahedral sites are occupied.
D) All octahedral and tetrahedral sites are not occupied.
E) There are six 'Cl' atoms around every 'Na' and there are six ' Na ' atoms around every ' Cl '.