Question

state which of the following solutions exhibit tyndal effect ? starch solution,sodium chloride solution, tincture of iodine, air

Answer 1

Starch solution and tincture iodine are colloid and thus will show tyndall effect.

Answer 2

Tyndall effect is shown both by starch solution and air.

• A light beam is scattered by the Tyndall effect, also known as then, in a medium that contains minute suspended particles.
• Both starch solution and air, which are heterogeneous mixes and can scatter a beam of light as it travels through them, demonstrate the Tyndall effect.
• Both tincture of iodine (iodine crystals dissolved in thyl alcohol) and sodium chloride solution are homogeneous by nature and do not show the Tyndall effect.

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