AP EAMCET Engineering 2018 Apr 22 Shift 2 Paper

Section: Chemistry

Question : 139 of 160

Marks: +1, -0

A compound is formed by X and Y elements. Atoms of Y (anions) form hcp lattice. Atoms of X (cations) are in some octahedral holes. The formula of the compound is XY3 . What is the fraction of octahedral holes unoccupied by X?

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