1IT SHOULD BE (B) AND (C)
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.