Solid State Question 14
Question: AB; crystallizes in a body centred cubic lattice with edge length ‘a’ equal to 387 pm. The distance between two oppositely charged ions in the lattice is
Options:
A) 335 pm
B) 250 pm
C) 200 pm
D) 300 pm
Show Answer
Answer:
Correct Answer: A
Solution:
[a] For bcc lattice body diagonal $ =a\sqrt{3} $ .
The distance between the two oppositely charged ions $ =\frac{a}{2}\sqrt{3}=\frac{387\times 1.732}{2}=335pm $
BETA
