40 TOP Stoichiometry Online Test – Multiple Choice Questions and Answers

1. The equilibria relations in a multicom-ponent and multiphase system can not be calculated with the help of the

 
 
 
 

2. Pick out the wrong statement:

 
 
 
 

3. If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will

 
 
 
 

4. What is the total pressure exerted by a mixture of 0.45 kg mole of benzene, 0.44 kg mole of toluene and 0.23 kg mole of o-xylene at 100°C, if their vapor pressures at 100°C are 1340, 560 and 210 mmHg respectively ?

 
 
 
 

5. An azeotropic solution of two liquids has boiling point lower than either of them, when it

 
 
 
 

6. 2 litres of nitrogen at N.T.P. weighs __________ gms

 
 
 
 

7. In case of vapor-liquid equilibria, which of the following does not account for gas phase deviation from ideality?

 
 
 
 

8. Sometimes, in chemical processes, a part of the outlet stream is rejected as waste in order to keep the impurity level in the system within limits. This phenomenon is termed as the

 
 
 
 

9. A vapor whose partial pressure is less than its equilibrium vapor pressure is called a __________ vapor

 
 
 
 

10. In case of a solution (not of a solid in a liquid), whose total volume is more than the sum of volumes of its components in their pure states, solubility is

 
 
 
 

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