Solid State Question 193
Question: A compound is formed by elements $ A $ and $ B. $ This crystallizes in the cubic structure when atoms $ A $ are the corners of the cube and atoms $ B $ are at the centre of the body. The simplest formula of the compounds is
[KCET 1993; CBSE PMT 2000; Kerala PMT 2002]
Options:
A) $ AB $
B) $ AB_2 $
C) $ A_2B $
D) $ AB_4 $
Show Answer
Answer:
Correct Answer: A
Solution:
A atoms are at eight corners of the cube. Therefore, the number of A atoms in the unit cell $ =\frac{8}{8}=1 $ , atoms B per unit cell = 1. Hence the formula is AB.
BETA
