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प्रश्न
On the basis of information given below mark the correct option.
On adding acetone to methanol some of the hydrogen bonds between methanol molecules break.
पर्याय
At specific composition methanol-acetone mixture will form minimum boiling azeotrope and will show positive deviation from Raoult’s law.
At specific composition methanol-acetone mixture forms maximum boiling azeotrope and will show positive deviation from Raoult’s law.
At specific composition methanol-acetone mixture will form minimum boiling azeotrope and will show negative deviation from Raoult’s law.
At specific composition methanol-acetone mixture will form maximum boiling azeotrope and will show negative deviation from Raoult’s law.
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उत्तर
At specific composition methanol-acetone mixture forms maximum boiling azeotrope and will show positive deviation from Raoult’s law.
Explanation:
(i) (A-A) or (B-B) interactions are stronger than that (A-B) interactions; where, A is methanol and B represents a molecule of acetone. It means that in this solution molecules of A (or B) wil find it easier to escape/ This will increase the vapour pressure and result into positive deviation from Rault's law.
(ii) Due to this positive deviation the methaonal-acetone mixture forms minimums boiling azeotrope.
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संबंधित प्रश्न
State Raoult’s law for the solution containing volatile components
Define azeotropes.
Why does a solution containing non-volatile solute have higher boiling point than the pure solvent ?
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- molar mass of the solute.
- vapour pressure of water at 298 K.
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Minimum boiling azeotrope is formed by the solution which showed
On the basis of information given below mark the correct option.
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(B) In ethanol and acetone mixture A–A or B–B type intermolecular interactions are stronger than A–B type interactions.
(C) In chloroform and acetone mixture A–A or B–B type intermolecular interactions are weaker than A–B type interactions.
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\[\ce{CHCl3(l) and CH2Cl2(l)}\]
A solution of a non-volatile solute in water freezes at −0.30°C. The vapour pressure of pure water at 298 K is 23.51 mm Hg and Kf for water is 1.86 degree/mol. The vapour pressure of rain solution at 298 K is ______ mm Hg.
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