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Grade 11Physical Chemistry

A solid crystal is composed of X, Y and Z atoms. Y atoms are occupying 50% of octahedral voids, where as X atoms are occupying the 100% tetrahedral void with Z atoms in ccp array arrangement, then the rational formula of the compound in the given crystal is

(A) X8Y2Z4 (B) X5Y10Z8

(C) X4YZ2 (D) X16Y4Z8

Profile image of Ketan Shah
12 Years agoGrade 11
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1 Answer

Profile image of Sher Mohammad
12 Years ago
Z atoms are in ccp array so no of Z atoms=4
no of octahedral voids=4
no of tetrahedral voids=8
so no of Y atoms=2
no of X atoms=8
so formula X8Y2Z4 that means X4YZ2 correct answer is C

Sher mohammad
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