1.

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

Answer»

1 and 4
2 and 4
1, 2 and 4
2, 3 and 4

Solution :`pi=icRT`
(1) `pi(0.15"M UREA")=1xx0.15 "RT"=0.15"RT"`
(2) `pi(0.5"M" CaCl_(2))=3xx0.05 "RT"=0.15"RT"`
(3) `pi(0.1"M" MgSO_(4))=2xx0.1 "RT"=0.2"RT"`
(4) `pi(0.15 "M GLUCOSE")=1xx0.15"RT"=0.15"RT"`


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