Which one of the following is most likely to exhibit Tyndall effect?
(a) sugar and water mixture (b) potash alum and water mixture
(c) chalk powder and water mixture (d) potassium permanganate and water mixture
(c) chalk powder and water mixture
Chalk powder, when dissolved in water, shows Tyndall effect as it is a colloid. Mixtures of water show Tyndall effect, as they scatter a beam of light.