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प्रश्न
Differentiate between:
Detergents and Soaps.
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उत्तर
Differentiate between: Detergents and soaps
| Detergents | Soaps | ||
| i. | Detergents are generally ammonium or sulphonate salts of long-chain carboxylic acids. | i. | Soaps are sodium or potassium salts of long-chain carboxylic acids. |
| ii. | Detergents have a strong cleansing action. | ii. | Soaps have relatively weak cleansing action. |
| iii. | Oils or fats are not used in their manufacture, usually, petrochemicals are used to produce detergents. | iii. | Vegetable oils or animal fats are used along with hydroxide of sodium or potassium to manufacture soaps. |
| iv. | They function well in hard or soft water. | iv. | They do not work well in had water but work well in soft water. |
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संबंधित प्रश्न
Describe in brief the cleansing action of soap.
In a locality, hard water, required for an experiment, is not available. However, the following salts are available in the school laboratory:
1. Sodium sulphate
2. Calcium sulphate
3. Magnesium chloride
4. Sodium chloride
5. Calcium chloride
6. Potassium sulphate
Which of the above salts may be dissolved in water to obtain hard water for the experiment?
(A) 2, 3 and 5
(B) 1, 2 and 5
(C) 1, 2, 4 and 6
(D) 3 and 5 only
What change will you observe if you test soap with litmus paper (red and blue)?
Distinguish between esterfication and saponification reaction with the help of the chemical equations for each.
Mention the essential material (chemicals) to prepare soap in the laboratory. Describe in brief the test of determining the nature (acidic/alkaline) of the reaction mixture of saponification reaction.
______ is better than soap for washing clothes when the water is hard.
Why is common salt (sodium chloride) added during the preparation of soap?
Why is soap not suitable for washing clothes when the water is hard?
The soap molecule has a ______.
Which one of the following sets of materials can be used to prepare soap?
(A) Neem oil and calcium hydroxide
(B) Castor oil and sodium hydroxide
(C) Mineral oil and sodium hydroxide
(D) Neem oil and magnesium hydroxide
What is the difference between the chemical composition of soaps and detergents? State in brief the action of soaps in removing an oily spot from a shirt. Why are sops not considered suitable for washing where water is hard?
What is a soap?
Answer the following question.
In three test tubes A, B, and C, three different liquids namely, distilled water, underground water and distilled water in which a pinch of calcium sulphate is dissolved, respectively are taken. Equal amount of soap Answer is added to each test tube and the contents are shaken. In which test tube will the length of the foam (lather) be longest? Justify your answer.
What is meant by ‘surface activity’?
What are the differences between Bath soap and soap for washing clothes?
Explain why soap cannot be used in hard water.
The saponification of a fat or oil is done using _____ solution for hot process.
How does soap clean clothes?
What are soaps?
