Solid State Question 246
Question: In orthorhombic, the value of $ a,b $ and $ c $ are respectively $ 4.2{AA},8.6{AA} $ and $ 8.3{AA} $ . given the molecular mass of the solute is $ 155gmmo{{l}^{-1}} $ and that of density is $ 3.3gm/cc $ , the number of formula units per unit cell is
[Orrisa JEE 2005]
Options:
A) 2
B) 3
C) 4
D) 6
Show Answer
Answer:
Correct Answer: C
Solution:
$ Z=\frac{V\times N_0\times d}{M} $
$ =\frac{4.2\times 8.6\times 8.3\times {{10}^{-24}}\times 6.023\times 10^{23}\times 3.3}{155} $
$ =3.84=4 $
BETA
