Question

Write two differences between a solution showing positive deviation and a solution showing negative deviation fron raoults law

Answer 1

in positive deviation vapour pressure of solution increases while in negative deviations v.p. decrease . in positive deviation b.p. of solutin decreases while in negative deviations b.p. increases

Answer 2

 EXAMPLES OF SOLUTIONS SHOWING POSITIVE DEVIATIONS; 

1) Ethyl alcohol and water
2) Acetone and carbon disulphide
3) Carbon tetrachloride and benzene
4) Acetone and Benzene .

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EXAMPLES OF SOLUTIONS SHOWING NEGATIVE DEVIATIONS: 

1) HNO3 and water 
2) chloroform and Acetone 
3) Acetic acid and pyridine
4) Hydrochloric acid and water