Solid State Question 201
Question: For an ionic crystal of the general formula $ AX $ and coordination number 6, the value of radius ratio will be
[MP PMT 1993]
Options:
A) Greater than 0.73
B) In between 0.73 and 0.41
C) In between 0.41 and 0.22
D) Less than 0.22
Show Answer
Answer:
Correct Answer: B
Solution:
The structural arrangement of co-ordination number -6- is octahedral and its radius ratio is $ 0.414-0.732 $ . The example of octahedral is $ KCl $ and $ NaCl $ .