Analyse the questions given below and identify the correct answer:
1. Which among the following mixtures show the Tyndall effect? A mixture of:
a. Air and dust particles
b. Copper sulphate and water
c. Starch and water
d. Acetone and water
a. Air and dust particles
b. Copper sulphate and water
c. Starch and water
d. Acetone and water
2. Which of the following is an example of an oil-in-water emulsion?