Physical Chemistry Quiz

1.      The solutions that do not obey Raoult's law at all compositions are called --------------

• ideal solutions    

• real solutions

• binary solutions   

• ternary solution

2. An example for completely miscible binary solution is a mixture of ---------------

•       Nitrobenzene and water

• Alcohol and water        

• Liquid paraffin and water

• Cyclohexane and water    

3, The ideal binary liquid solutions can be separated by  --------- distillation

• fractional

• steam

• azeotropic

• hot

4. An example for low boiling azeotropes is -------------

• Liquid paraffin and water

• Ethanol and water

• Cyclohexane and water    

• Benzene and water   

5. Fractional distillation which results in the formation of an azeotropic mixture is called

        ------- distillation.

• fractional

• steam

• azeotropic

• hot

6. The 100% alcohol is known as

• Power alcohol

• hot alcohol

• absolute alcohol

• rectified alcohol

7. The system with upper CST is ------------- system.

• Nitrobenzene and water

• Phenol and water     

• Cyclohexane and water     

• Liquid paraffin and water

8. The system with lower CST is ------------- system.

• Phenol and water             

• Cyclohexane and water             

• Liquid paraffin and water

• Triethylamine and water

9. The purity of a liquid can be tested by ---------- Test.

• Crismer

• Christer

• Sezuski

• Crisber

10. An example for completely immiscible binary solution is a mixture of ---------------

• Triethylamine and water           

• ethanol and water                      

• Benzyne and water

• Nitrobenzene and water