Question

3. In the laboratory we prepared two solutions one of NaCl in water and another

starch in water. With the help of a torch both the solutions were tested for Tyndal

effect. The result obtained was –

(a) Solution of NaCl showed Tyndal effect.

(b) Solution of starch showed Tyndal effect.

(c) Both the solutions showed Tyndal effect.

(d) Non of the two showed the Tyndal effect.​

Answer 1

Answer:

b

Explanation:

Answer 2

The correct option is b.

The correct option is b. The result obtained was solution of starch showed Tyndal effect.

• The colloids show Tyndal effect because in colloids solid particles are present which scratter the passed light. Starch solution is colloid so, it shows Tyndal effect.
• Again NaCl completely dissolved in water so it doesn't show Tyndal effect.