NEET2004ChemistrySolid StateActual
A compound formed by element X and Y crystallises in a cube and 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:
Options
- AXY ₃
- BX ₃ Y
- CXY
- DXY ₂
Correct answer
A. XY ₃
Step-by-step solution
In a unit cell, X atoms at the corners = 1 8 8=1 Y atoms at the face centres = 1 2 6=3 Ratio of X and Y =1: 3 . Hence formula is XY ₃ .