MCQ
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.
  • 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

Correct option: A.
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 will show positive deviation from Raoulfs law as it has lesser interactions than methanol$-$methanol and acetone$-$acetone interactions. Hence it forms minimum boiling azeotrope.

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