Question

Which of the following about the above structure is incorrect?

• A. It has $ccp$ structure.
• B. Each $X$ ion is surrounded by eight $Y$ ions.
• C. The structure is similar to diamond.
• D. $X$ ions are present at the corner of the cube and center of each face.

Answer 1

The correct option is B Each $X$ ion is surrounded by eight $Y$ ions.

In this type of structure, the coordination number is $4:4$ i.e. each $X$ atom is surrounded by 4 $Y$ atoms and each $Y$ atom is surrounded by 4 $X$ atoms.

So, option B is not correct.