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Standard XII

Chemistry

Empirical & Molecular Formula

A compound fo...

Question

A compound formed by elements X and Y crystallizes in a cubic structure in which the X atoms are at the corners of a cube and the Y atoms are at the face-centres. The formula of the compound is:

_{3}

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_{2}

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_{3}

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Solution

The correct option is D XY $_{3}$
As only 1 atom can accommodate on 1 corner of a cube,
No. of X - atoms per unit cell = 8/8 = 1
As 2 atoms can accommodate on 1 face of a cube,
No. of Y - atoms per unit cell = 6/2 = 3
Hence Compound is XY₃

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A compound formed by elements X and Y crystallizes in a cubic structure in which the X atoms are at the corners of a cube and the Y atoms are at the face-centres. The formula of the compound is:

The correct option is D XY3As only 1 atom can accommodate on 1 corner of a cube,No. of X - atoms per unit cell = 8/8 = 1As 2 atoms can accommodate on 1 face of a cube,No. of Y - atoms per unit cell = 6/2 = 3Hence Compound is XY3

The correct option is D XY $_{3}$
As only 1 atom can accommodate on 1 corner of a cube,
No. of X - atoms per unit cell = 8/8 = 1
As 2 atoms can accommodate on 1 face of a cube,
No. of Y - atoms per unit cell = 6/2 = 3
Hence Compound is XY₃