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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
Solid State

NTA Abhyas 2020 · Chemistry · Solid State

A compound formed by elements X and Y crystallises in in a cubic...

A compound formed by elements X and Y crystallises in in a cubic structure in which atoms X are at the corners of the cube and atoms Y are at two non-adjacent face-centres. The formula of the compound isA compound formed by elements X and Y crystallises in in a cubic structure in which atoms X are at the corners of the

Options

  1. AX3Y{X}_{3}Y
  2. BXYXY
  3. CXY2X{Y}_{2}
  4. DXY3X{Y}_{3}

Correct answer

B. XYXY

Step-by-step solution

A compound formed by elements X and Y crystallises in in a cubic structure in which atoms X are at the corners of the
•→X• \to X
→Y\to Y
Number of X atoms =18×8=1= \dfrac{1}{8} \times 8 = 1
Number of Y atoms =12×2=1= \dfrac{1}{2} \times 2 = 1
formula of the solid compound =XY= XY
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