Considering the formation, breaking and strength of hydrogen bond, predict which of the following mixtures will show a positive deviation from Raoult’s law?

1.  Methanol and acetone

2.  Chloroform and acetone

3.  Nitric acid and water

4.  Phenol and aniline

 

Subtopic:  Azeotrope |
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A mixture of ethanol and water shows a positive deviation from Raoult's law. This mixture also forms an azeotropic mixture. The boiling point of this azeotropic mixture will be 
 
1. Less than the boiling point of water but more than the boiling point of ethanol 
2. More than the boiling point of water but less than the boiling point of ethanol
3. More than the boiling point of ethanol as well as water 
4. Less than the boiling point of ethanol as well as water 
Subtopic:  Azeotrope |
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If A (volatile solute) and B (volatile solvent) form an azeotropic mixture then the correct statement regarding the above azeotropic mixture will be - 
 
1. Mole fraction of A in the vapour phase is more than the mole fraction of A or B in liquid phase 
2. Mole fraction of A or B in the vapour phase is more than the mole fraction of A or B in liquid phase 
3. Mole fraction of A or B in the vapour phase is same as the mole fraction of A or B in liquid phase
4. Mole fraction of A and B in the vapour phase is less than the mole fraction of A or B in liquid phase 
Subtopic:  Azeotrope |
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