KVPY 2019 SB SX Exam Previous Papers

Question : 110 of 120

Marks: +1, -0

Atoms of an element Z form hexagonal closed pack (hcp) lattice and atoms of element X occupy all the tetrahedral voids. The formula of the compound is

XZ
XZ $_2$
X $_2$ Z
$X_4Z_3$

Validate

Solution:

Z = 6[in hcp packing]
X = 12[in tetra hedral void]
So formula

X_2Z

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