Solutions Question 267
Question: The concentration in gms per litre of a solution of cane sugar $ (M=342) $ which is isotonic with a solution containing $ 6,gms $ of urea $ (M=60) $ per litre is [Orissa PMT 1989]
Options:
A) 3.42
B) 34.2
C) 5.7
D) 19
Show Answer
Answer:
Correct Answer: B
Solution:
Isotonic solution = $ \frac{w_1}{m_1V_1}=\frac{w_2}{m_2V_2} $
$ =\frac{w_1}{342\times 1}=\frac{6}{60\times 1},=\frac{342\times 6}{60}=34.2 $ .
