1.

A solid is formed and it has three types of atoms X, Y, Z. X forms an FCC lattice with Y atoms occupying one-fourth of tetrahedral voids and Z atoms occupying half of the octahedral voids. The formula of the solid is

Answer»

`X_4 Y_4 Z_2`
`X_2 Y Z_2`
`X_4 Y Z`
`X_2 Y Z`

ANSWER :D


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