Cleansing Action of Soap

Q.

Write the differences between soaps and detergents.

Q. Identify the hydrocarbon that is an example of a soap molecule.

1. 

2. 

3. 

4. 

Q. What is the chemical formula of soap

Q. Detergents are more effective in than soaps.

1. soft water
2. hard water
3. saline water

Q.

Which of the following is not an emulsifier?

1. Oil

2. Detergents

3. Gum

4. Soap

Q.

What is a soap, what for is it used ?

Q.

Unit of surface area can be

1. $c{m}^2$

2. $m^3$

3. $m^2$

4. litre

Q.

What are soaps made of?

Q.

In what type of solvents do the
(a) polar compounds and
(b) non-polar compounds dissolve?

Q.

Oil and water can be separated from a mixture using __________ .

1. sedimentation & decantation

2. threshing

3. winnowing

4. crystallisation

Q. What is the chemical symbol or chemical formula of soap

Q. Question 8
Why does micelle formation take place when soap is added to water? Will a micelle be formed in other solvents such as ethanol also?

Q.

73) What are different kinds of soaps? What are raw materials used for manufacture of different kinds of soaps.

Q. In soap industries, ___ is used to treat vegetable oils or animal fats.

1. All of these
2. Sodium hydroxide
3. Potassium hydroxide
4. Strong base/alkali

Q. Cleansing action of soap is due to the formation of micelles.

1. True
2. False

Q. Which of the following option(s) is/are true?

1. Soaps are more effective in hard water than detergents
2. Both are equally effective
3. Detergents are more effective in hard water than soaps.
4. Detergents work only in soft water.

Q.

Explain the formation of scum when hard water is treated with soap.

Q. Hardness of water is due to the presence of salts of

1. Potassium
2. Chlorine
3. Magnesium
4. Argon

Q. what is the difference between soaps and detergent?

Q. Hardness of water is due to the presence of salts of

1. Potassium
2. Chlorine
3. Magnesium
4. Argon

Q. Most red writing inks are a dilute solution of the red dye :

1. triphenylmethane
2. methylene blue
3. basic fucsin
4. eosin

Q. The soap molecule has a

1. Hydrophilic head and a hydrophobic tail
2. Hydrophobic head and a Hydrophilic tail
3. Hydrophobic head and a hydrophobic tail
4. Hydrophilic head and a hydrophilictail