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Which of the following solutions are iso...

Which of the following solutions are isotonic with one another?
1. `0.15 M` urea 2. `0.05M CaCI_(2)`
3. `0.1M MgSO_(4)` 4. `0.15M` glucose
Select the correct answer using the codes given below.

A

1 and 4

B

2 and 3

C

1,2 and 4

D

2,3 and 4

Text Solution

Verified by Experts

The correct Answer is:
C
`pi = i` CRT
`pi(0.15" M urea")=1xx0.15 RT = 0.15 RT (1)`
`pi (0.05M CaCl_(2)) = 3xx0.05 RT = 0.15 RT (2)`
`pi (0.1 M MgSO_(4)) = 2xx0.1 RT = 0.2 RT (3)`
`pi (0.15" M glucose") = 1xx0.15 RT = 0.15 RT (4)`
Clearly solutions (1), (2) and (4) ae isotonic
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