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प्रश्न
What are the similarities between Soap and synthetic detergent.
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उत्तर
| 1. | Primary Use | Both are used for cleaning, including washing clothes, dishes, and personal hygiene. |
| 2. | Cleaning Action | Both work by removing dirt, oils, and greases from surfaces through similar chemical mechanisms (surfactant action). |
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
Would you be able to check if water is hard by using a detergent?
State one use of esterfication process.
Fill in the following blank with suitable word:
The sodium salt of a long chain fatty acid is called .............
Which of the two is better for washing clothes when the water is hard: soap or detergent? Give reason for your answer.
What is a soap? Name one soap.
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
The chemical mostly used in the preparation of most of the soaps we use is
(a) Sodium chloride
(b) Potassium hydroxide
(c) Sodium hydroxide
(a) Potassium chloride
A student takes 4 mL of distilled water in each of four test tubes I, II, III and IV, and then dissolves an equal amount of four different salts namely NaCl in I, CaCl2 in II, MgCl2 in III and KCl in IV. He then adds 8 drops of the given soap solution to each test tube and shakes the contents of the test tube 10 times. In which test tubes will enough lather (foam) be formed ?
(A) I and II
(B) II and III
(C) I and IV
(D) III and IV
Explain why often coloured spots are formed on clothes during washing.
