1I THINK FOR (A) SOLUTE SHOULD NOT ASSOCIATE OR DISSOCIATE
MULTIPLE ANSWER TYPE
Two isotonic solutions have
(A) the same weight concentrations
(B) the same vapour pressure
(C) Osmotic pressure
(D) All
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5 Answers
1Answer is given as B & C
Even I had the same opinion as Debotosh while solving the prob
But the given ans made me put the qs here
106For isotonic solutions,
P(a) = P(b) (osmotic pressure)
=> C(a)RT = C(b)RT (assuming temp remains constant)
=> C(a) = C(b)
=> molar concentrations are same
Vapor pressure is directly proportional to concentration (actually mole fraction.) so it is also correct.
But weight concentrations need not be same.