Q.

Which of the following binary mixture does not show the behaviour of minimum boiling azeotropes             [2025]
 

1 H2O+CH3COC2H5  
2 C6H5OH+C6H5NH2  
3 CS2+CH3COCH3  
4 CH3OH+CHCl3  

Ans.

(2)

Solution Deviation from Raoult’s law Azeotrope
(1) H2O+CH3COC2H5 Positive deviation Minimum boiling
(2) C6H5OH+C6H5NH2 Negative deviation Maximum boiling
(3) CS2+CH3COCH3 Positive deviation Minimum boiling
(4) CH3OH+CHCl3 Positive deviation Minimum boiling