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प्रश्न
State one advantage of soaps over detergent.
उत्तर
Advantage of soaps over detergents:
Soaps are biodegradable; therefore, they don't cause water pollution, while a few detergents are not biodegradable, thereby pollute water bodies like rivers and lakes.
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संबंधित प्रश्न
Why do soaps not form lather in hard water?
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
Why is common salt (sodium chloride) added during the preparation of soap?
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
What is a soap?
Why are soaps not suitable for washing clothes when the water is hard?
The alkaline hydrolysis of fatty acids is termed as ______
Soaps are ester of which type of acids?
- Write the formula and draw electron dot structure of carbon tetrachloride.
- What is saponification? Write the reaction involved in this process.
