40 TOP Stoichiometry Online Test – Multiple Choice Questions and Answers

1. Pick out the wrong statement:


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


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


4. 2 litres of nitrogen at N.T.P. weighs __________ gms


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


6. 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 ?


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


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


9. 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


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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