A liquid mixture that shows a large positive deviation from Raoult's law will form which kind of azeotrope?
Amaximum boiling azeotrope
Bno azeotrope at all
Cminimum boiling azeotrope
Dan ideal boiling azeotrope
Answer & Solution
Correct answer: C. minimum boiling azeotrope
1. Azeotropes form at large deviations from Raoult's law.
2. Large positive deviation means higher vapour pressure, hence lower boiling point at a specific composition.
3. So a large positive deviation gives a minimum boiling azeotrope (e.g. ethanol-water).
_Source: NCERT Class 12 Chemistry Ch 1 "Solutions", p.13_
Related questions
The mass of NaOH (M = 40 g/mol) required to prepare 500 mL of a 0.20 M NaOH solution isWhich of these solutions will boil at the highest temperature at 1 atm?The molality of a 1 M aqueous NaCl solution (density = 1.04 g/mL, NaCl M = 58.5 g/mol) is Osmotic pressure π of a dilute solution obeys π = C R T. Here C representsVan't Hoff factor i > 1 for a solute indicatesA negative deviation from Raoult law is expected whenIf a solute dimerises in solution, its observed molar mass compared with the calculated vaWhich of the following is NOT a colligative property?