11. Which of the following is not a colligative property?
a Osmotic pressure c Boiling point elevation
b Vapour pressure d Freezing point depression
12. The addition of a non-volatile solute to a solvent results in the lowering of:
a boiling point as well as freezing point
b freezing point as well as vapour pressure
c vapour pressure as well as density
d boiling point as well as vapour pressure
13. Phosphoric acid reacts with calcium hydroxide to form calcium hydrogen phosphate
and water. The equivalent mass of phosphoric acid in this reaction will be:
a 98 g/eq c 49 g/eq
b 32.6 g/eq d 14 g/eq�
13. The equivalent mass of phosphoric acid in this reaction will be:
b 32.6 g/eq