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प्रश्न
Both soap and detergent are some type of salts. What is the difference between them?
What is the difference between the molecules of soaps and detergents, chemically?
उत्तर
Difference between soap and detergent:-
Soap molecules are sodium or potassium salts of long-chain carboxylic acids. They form scum upon reaction with calcium and magnesium ions present in hard water.
Detergent molecules are ammonium or sulphonate salts of long-chain carboxylic acids. They do not form insoluble precipitates with calcium and magnesium ions.
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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
Would you be able to check if water is hard by using a detergent?
State one use of saponification process.
What are the raw materials required for making soap in a laboratory (or at home)?
Fill in the following blank with suitable word:
............. is better than soap for washing clothes when the water is hard.
Explain the cleansing action of soap. Draw diagrams to illustrate your answer.
The chemical which is not required for the preparation of soap in the laboratory is:
(a) vegetable oil
(b) baking soda
(c) caustic soda
(d) common salt
Explain the action of soap in removing an oily spot from a piece of cloth.
Explain why synthetic detergents are superior to soap.
Why do soaps not work effectively in hard water?
