Question

The density of KBr is 2.75 gm cm^-3. Length of the unit cell is 654 pm. K = 39, Br = 80. Then what is TRUE about the predicted nature of the solid?

(A) Solid has face centered cubic system with z = 4.

(B) Solid has simple cubic system with z = 4.

(C) Solid has face centered cubic system with z = 1.

(D) Solid has body centered cubic system with z = 2.

Answer 1

correct answer is: (A) Solid has face centered cubic system with z = 4