Question

(a) List any four properties of a colloid and mention
any two properties in which colloids differ from
suspension.
(b) Why does solution of sodium chloride not show
tyndall effect whereas the mixture of water and
milk shows.
(c)To make a saturated solution, 30 g of sodium chloride
is dissolved in 100 g of water at 293 K. Find its
concentration at this temperature.​

Answer 1

C)Mass of solute→ 30g

Mass of solvent = 100g.

Mass of solution = 100 + 30

→130g

Concentration of solution = (Mass of solute / Mass of solution ) x100.

(3o/13o) x 100

→ 23.07%