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Following are equimolal (=equimolar) aqueous solutions. (A) 1 m glucose (B) 1 m NaCI © 1 m BaCI_(2)(D) 1 m Na_(3)PO_(4) € 1 m benzoic acid Assume 100%ionisation in B, C, D and 100% dimer formation in E, arrange the following in increasing (i)boiling point (ii) freezing point (iii) osmotic pressure |
Answer» Solution : (i) Boiling point of solution `T_(B)=T_(b)+(DeltaT_(b))=T_(0)+i m K_(b)` Greater the value of more is the boiling point Increasing order of boiling point is : `EltAltBltCltD` (ii) Freezing point of solution `T_(f)=T_(0)=im K_(f)` Greater the volume of i, LESSER is the freezing point: `DltCltBltAltE` Osmotic PRESSURE of solution `pi=i` CRT Greater the value of i more is the osmotic pressure. Increasing order of osmotic pressure is : `EltAltBltCltD`. |
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