Advertisements
Advertisements
प्रश्न
What are the differences between Bath soap and soap for washing clothes?
Advertisements
उत्तर
| Sr. No. | Bath soap | Soap for washing clothes |
| 1. | It is a type of soft soap and is used for bathing purposes. | It is a type of hard soap and is used for washing clothes. |
| 2. | Soft soaps are a potassium salt of fatty acids. It does not cause irritation of the skin. | Hard soap is a sodium salt of fatty acids. |
संबंधित प्रश्न
A student takes four test tubes marked P, Q, R and S of 25 mL capacity and fills 10 mL of distilled water in each. He dissolves one spoon full of four different salts in each as − KCl in P, NaCl in Q, CaCl2 in R and MgCl2 in S. He then adds about 2 mL of a sample of soap solution to each of the above test tubes. On shaking the contents of each of the test tubes, he is likely to observe a good amount of lather (foam) in the test tubes marked
(a) P and Q
(b) R and S
(c) P, Q and R
(d) P, Q and S
What is a detergent? Name one detergent.
Why have detergents replaced soap as a washing agent?
Explain the cleansing action of soap. Draw diagrams to illustrate your answer.
In a soap micelle, the soap molecules are arranged radially with:
(a) ionic ends directed towards the centre and hydrocarbon ends directed outwards
(b) hydrocarbon ends directed towards the centre and ionic ends directed outwards
(c) both ionic ends and hydrocarbon ends directed toward the centre
(d) both hydrocarbon ends and ionic ends directed outwards
Consider the following oils :
(I) Mobil oil
(II) Castor oil
(III) Turpentine oil
(IV) Kerosene
(V) Mustard oil
(VI) Coconut oil
Which of these can be used for prepartion of soap?
(a) I, II, III, VI
(b) II, V, VI
(c) II, III, V, VI
(d) II, III, VI
Explain the action of soap in removing an oily spot from a piece of cloth.
What is meant by ‘surface activity’?
What are the two different types of molecules found in the soap?
How does soap clean clothes?
