Chapter 2

NCERT
Class 9
Science
Solutions
9. Which of the following will show ‘Tyndall effect’ ?

Question:

Which of the following will show ‘Tyndall effect’ ?

(a) Salt Solution

(b) Milk

(c) Copper Sulphate Solution

(d) Starch Solution

Answer:

Colloids show the Tyndall effect, but solutions do not show the Tyndall effect. Milk and starch solution are colloids. Thus, they will show the Tyndall effect.

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