1) In which of these examples is the solute and solvent both liquid? a) Oxygen dissolved in water. b) Ethanol dissolved in water. c) Glucose dissolved in water. 2) Which of these is NOT a way to describe concentration quantitively?  a) Mass by volume percentage. b) Parts per million. c) Volume by mass percentage.  3) Which of the following is incorrect:  a) Mole Fraction = Number of moles in the component/Total number of moles. b) XA = nA / nA + nB c) XB = nA / nA + nB 4) Molality =  a) Moles of solute / Volume of solution in litre. b) Moles of solute / Mass of solvent in Kg. c) Grams of solute / Volume of solution in litre. 5) Solubility is defined as: a) Concentration of solute in a solution. b) Concentration of the solvent in a solution. c) Maximum amount of solute that can be dissolved in a specified amount of solvent at a specific temperature.

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