Question

A crystal is formed by two elements X and Y in cubir Stuucture. X atoms are at the corners of a cube while Y atoms are at the face centre. The Formula of the compound will be
(A)XY
(B)XY2
(C)X2Y3
(D)XY3

Answer 1

Answer:

Explanation:

Since, X atoms are present at corners of cube.

So, number of X atoms =  

8

1

​

×8=1

Y atoms are present at face centres.

So, number of Y atoms =  

2

1

​

×6=3.

So, the formula of compound is XY  

3

​

.

So, option D is correct.

Answer 2

Answer:

Explanation:

(D)XY3