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 $ .



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