Answer to Question #42410 in Inorganic Chemistry for Amer

Question #42410
1) Surface activity is negative for: a- C3H7OH b- CH3COOH c- Na2SO4 d- C2H5OH e- C6H12O6 2) If the temperature is increased, physical adsorption of substance: a- increases b- remains the same c- decreases d- at first increases and then decreases e- at first decreases and then increases 3) Arrange substances with respect to increase of adsorption from aqueous solutions on the activated charcoal: a- benzene, phenol, glucose b- phenol, glucose, benzene c- benzene, glucose, phenol d- glucose, phenol, benzene e- phenol, benzene, glucose 4) If the length of hydrocarbon radical in molecule of surface-active substance is increased, describe which of the following statements will be correct: a- hydrophylic properties become stronger b- surface tension decreases c- surface activity reduces d- hydrophobic properties become weaker e- adsorption decreases 5) Adsorption equilibrium is characterized by: a- achievement of maximum adsorption b- presence of both physical adsorption and chemical adsorption c- absence of des
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