Which of the following binary mixture does not show the behaviour of minimum boiling azeotropes?

Which of the following binary mixture does not show the behaviour of minimum boiling azeotropes?
  1. $\mathrm{H}_2 \mathrm{O}+\mathrm{CH}_3 \mathrm{COC}_2 \mathrm{H}_5$
  2. $\mathrm{C}_6 \mathrm{H}_5 \mathrm{OH}+\mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2$
  3. $\mathrm{CS}_2+\mathrm{CH}_3 \mathrm{COCH}_3$
  4. $\mathrm{CH}_3 \mathrm{OH}+\mathrm{CHCl}_3$

Solution

Binary mixture of $\mathrm{C}_6 \mathrm{H}_5 \mathrm{OH}$ and $\mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2$ shows negative deviation from Raoult's law
So vapour pressure of solution is less than V.P of pure $\mathrm{C}_6 \mathrm{H}_5 \mathrm{OH} \& \mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2$
So B.P. of solution is greater than boiling point of pure $\mathrm{C}_6 \mathrm{H}_5 \mathrm{OH} \& \mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2$
So shows maximum Boiling azeotrope

Asked in: JEE Main 2025 (08 Apr Shift 2)

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