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प्रश्न
Differentiate between Toilet soap and Laundry soap.
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उत्तर
| Toilet Soap | Laundry Soap |
| It has high-quality fats and oils as raw materials. | It has low-quality fats and oils as raw materials. |
| Expensive perfumes are added to these soaps. | Cheap perfumes are added to these soaps. |
| To avoid skin injuries, special care is taken to ensure that there is no free alkali. |
No such care is taken. |
| Fillers are absent. | Fillers are present. |
APPEARS IN
संबंधित प्रश्न
A student takes about 4 ml of distilled water in four test tubes marked P, Q, R and S. He then dissolves in each test tube an equal amount of one salt in one test tube, namely sodium sulphate in P, potassium sulphate in Q, calcium sulphate in R and magnesium sulphate in S. After that he adds an equal amount of soap solution in each test tube. On shaking each of these test tubes well, he observes a good amount of lather (foam) in the test tube marked
(A) P and Q
(B) Q and R
(C) P, Q and S
(D) P, R and S
Hard water is not available for an experiment. Some salts are given below :
(I) Sodium chloride
(II) Sodium sulphate
(III) Calcium chloride
(IV) Calcium sulphate
(V) Potassium chloride
(VI) Magnesium sulphate
Select from the following group of these salts, each member of which may be dissolved in water to make it hard.
(A) I, II, V
(B) I, III, V
(C) III, IV, VI
(D) II, IV, VI
Explain the formation of scum when hard water is treated with soap.
Distinguish between esterfication and saponification reaction with the help of the chemical equations for each.
While studying the saponification reaction, what do you observe when you mix an equal amount of colourless vegetable oil and 20% aqueous solution of NaOH in a beaker?
(A) The colour of the mixture has become dark brown
(B) A brisk effervescence is taking place in the beaker
(C) The outer surface of the beaker has become hot
(D) The outer surface of the beaker has become cold
Explain the process of preparation of soap in laboratory.
What is the advantage of detergents over soaps for washing clothes? Also state one disadvantage.
Describe the structure of a soap molecule with the help of a diagram.
Distinguish between esterification and saponification reactions of organic compounds.
Give a scientific explanation.
Soap forms a precipitate in hard water.
Soap is a salt of ______ and sodium hydroxide.
Name three chemicals responsible for the surface activity of various detergents.
Water, coconut oil, and _______ are necessary for soap preparation.
Match the following
| 1. | Soap | C6H5 OH |
| 2. | Cement | CaSO4.2H2O |
| 3. | Fertilizers | NaOH |
| 4. | Gypsum | RCC |
| 5. | Phenol | NPK |
What are the three main constituents of soap?
The alkaline hydrolysis of fatty acids is termed as ______
Soaps are ester of which type of acids?
How does soap clean clothes?
What are soaps?
What are the similarities between Soap and synthetic detergent.
