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On the basis of information given mark the correct option. Information: On adding acetone to methanol some of the hydrogen bonds between methanol molecules break.
On the basis of information given mark the correct option. Information: On adding acetone to methanol some of the hydrogen bonds between methanol molecules break.
CBSE | Chemistry | Class 12 | Exercise 1 | NCERT Exemplar | Solutions
On the basis of information given mark the correct option. Information: On adding acetone to methanol some of the hydrogen bonds between methanol molecules break.

(i) At specific composition, methanol-acetone mixture will form minimum boiling azeotrope and will show positive deviation from Raoult’s law.

(ii) At specific composition, methanol-acetone mixture forms maximum boiling azeotrope and will show positive deviation from Raoult’s law.

(iii) At specific composition, methanol-acetone mixture will form minimum boiling azeotrope and will show negative deviation from Raoult’s law.

(iv) At specific composition, methanol-acetone mixture will form maximum boiling azeotrope and will show negative deviation from Raoult’s law.

 

Correct Answer: (i) At specific composition, methanol-acetone mixture will form minimum boiling azeotrope and will show positive deviation from Raoult’s law.

Explanation:  By adding acetone to methanol some hydrogen bond breaks and the interaction between methanol and ethanol decreases, so it shows less boiling azeotrope and shows a positive deviation from Raoult’s law.

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