Column – I : Formula with ratio of coordination number of cation to anion packing for the given closest 3D packing of anions with anion and anion are in contactColumn – II : Total number of voids of definite shape occupied per unit cell. Column–IColumn–IIA)MX2[6:3] (fcc)P)Half tetrahedral voids are occupied.B)MX[4:4] (hcp)Q)one third octahedral voids are occupiedC)M2X3[6:4] (hcp)R)Half octahedral voids are occupiedD)MX3[6:2] (hcp)S)Two thirds octahedral voids are occupied T)Size of the cation can be 0.414 times that of anion

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Column – I : Formula with ratio of coordination number of cation to anion packing for the given closest 3D packing of anions with anion and anion are in contact
Column – II : Total number of voids of definite shape occupied per unit cell.

Column–I		Column–II
A)	$M X_{2} [6 : 3]$ (fcc)	P)	Half tetrahedral voids are occupied.
B)	$M X [4 : 4]$ (hcp)	Q)	one third octahedral voids are occupied
C)	$M_{2} X_{3} [6 : 4]$ (hcp)	R)	Half octahedral voids are occupied
D)	$M X_{3} [6 : 2]$ (hcp)	S)	Two thirds octahedral voids are occupied
		T)	Size of the cation can be 0.414 times that of anion