Question

Q3. Which of the following is a
colloidal solution ?
Starch solution
copper sulphate solution
O O O O
Chalk powder in water
Kerosene oil and water​

Answer 1

Answer:

Starch solution

A mixture of water and starch is colloidal because it forms a shell of firmly bound molecules of water that stops the starch particles from aggregating with the molecules of water when they collide.

Answer 2

Answer:

the correct answer is starch sol