Q22 / 160 · TS EAMCET 2018 (07 May Shift 1) · Chemistry

A compound having elements $X$ and $Y$ crystallises in a cubic structure, where $X$ is at the corner position and $Y$ is at the center of the cube. The correct formula of the compound is

  • Correct answer
    A
    $X Y$
  • B
    $X_3 Y$
  • C
    $X Y_2$
  • D
    $X Y_3$

Solution

In a cubic structure. Number of $X$-atoms per unit cell $=\frac{8}{8}=1$ Number of $Y$-atoms per unit cell $=1$ Thus, formula is $X Y$.

Hence, the correct answer is option: 'A'.

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