40 TOP Stoichiometry Online Test – Multiple Choice Questions and Answers

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


2. Pick out the wrong statement:


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


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


5. 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 ?


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


7. 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


8. 2 litres of nitrogen at N.T.P. weighs __________ gms


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


10. 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


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