SURFACE CHEMISTRY(QUIZ-4) 1 / 5  On the basis of data given below predict which of the following gases shows least adsorption on a definite amount of charcoal? CO2 SO2 CH4 H2 SO2, Because of higher critical temperature, the Van der Waal’s forces of attraction will be more which would result in increased extent of adsorption. 2 / 5 Physical adsorption of a gaseous species may change to chemical adsorption with ___________ . decrease in temperature increase in temperature increase in surface area of adsorbent decrease in surface area of adsorbent At high temperature, covalent bonds will be seen forming as activation energy will be provided. 3 / 5 Extent of adsorption of adsorbate from solution phase increases with __________ increase in amount of adsorbate in solution. decrease in surface area of adsorbent. increase in temperature of solution. decrease in amount of adsorbate in solution. The Correct Answer Is increase in amount of adsorbate in solution. 4 / 5 The term ‘sorption’ stands for ___________ . Absorption adsorption both absorption and adsorption desorption When both the processes of adsorption and absorption take place, it is called sorption, e.g., dying of cotton fiber. 5 / 5 Gold sol can be prepared by Hydrolysis of AUCl3 Oxidation of Gold by aqua-regia Peptization Reduction of AUCl3 with HCHO solution. 2AuCl3 + 3HCHO + 3H2O → 2Au + 3HCOOH + 6HCl. Your score isThe average score is 0% 0% Restart quiz
