On the basis of information given below mark the correct option :
Information
On adding acetone to methanol some of the hydrogen bonds between methanol molecules break .

Options

A. At specific composition, methanol-acetone mixture will form minimum boiling azeotrope and will show positive deviation from Raoult's law.
B. At specific composition, methanol-acetone mixture forms maximum boiling azeotrope and will show positive deviation from Raoult's law.
C. At specific composition, methanol-acetone mixture will form minimum boiling azeotrope and will show negative deviation from Raoult's law.
D. At specific composition, methanol-acetone mixture will form maximum boiling azeotrope and will show negative deviation from Raoult's law.

Answer

A

Explanation

On adding acetone to methanol, methanol-methanol intermolecular hydrogen bonds break. Hence, solution will show positive deviations from Raoult.s law. Therefore, vapour pressure will be higher than expected and solution will form minimum boiling azeotrope.