Emulsions

Q.

In the soap micelles:

1. the ionic end of soap is on the surface of the cluster while the carbon chain is in the interior of the cluster.

2. ionic end of soap is in the interior of the cluster and the carbon chain is out of the cluster.

3. both ionic end and carbon chain are in the interior of the cluster

4. both ionic end and carbon chain are on the exterior of the cluster

Q. Which of the following is an example of oil dispersed in water emulsion:

1. Butter
2. Milk
3. Cream
4. None of the above

Q. Which of the following food item(s) belong to oil in water type of emulsion?

1. Mayonnaise
2. Milk
3. Cream
4. Soup

Q.

Which one of the following is/are true in the formation of emulsion?

i) the liquid in larger proportion act as dispersion of medium

ii) the liquid with higher surface tension forms the dispersion medium

iii) the liquid in which the emulsifying agent is more soluble forms the dispersion medium

iv) an emulsion is formed by vigorous shaking of two immiscible liquids

1. i, ii &iv

2. i, ii & iii

3. i, ii

4. i&iv

Q. Which of the following is incorrect regarding an emulsion?

1. Emulsions they exhibit Brownian movement
2. Emulsions show Tyndall effect
3. Emulsions can be diluted with any amount of dispersion medium
4. Generous amounts of dispersed phase can be added to emulsions with no coagulation