Solutions Question 203
Question: In a solution of $ 7.8,gm $ benzene $ C_6H_6 $ and $ 46.0,gm $ toluene $ (C_6H_5CH_3) $ , the mole fraction of benzene in this solution is [BHU 1981, 87]
Options:
A) $ 1/6 $
B) $ 1/5 $
C) $ 1/2 $
D) $ 1/3 $
Show Answer
Answer:
Correct Answer: A
Solution:
Mole fraction at $ C_6H_6=\frac{\frac{7.8}{78}}{\frac{7.8}{78}+\frac{46}{92}}=\frac{1}{6} $ .
