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Solution


Q.

The mixture that forms maximum boiling azeotrope is                     [2019]
1 heptane + octane  
2 water + nitric acid  
3 ethanol + water  
4 acetone + carbon disulphide  

Ans.

(2)

Maximum boiling azeotropes are formed by those solutions which show negative deviations from Raoult’s law. H2O and HNO3 mixture shows negative deviations.