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प्रश्न
Soap is a salt of ______ and sodium hydroxide.
विकल्प
white cement
soap
detergent
wearing of bones
tooth decay
hard
soft
Portland
fatty acid
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उत्तर
Soap is a salt of fatty acid and sodium hydroxide.
संबंधित प्रश्न
Both soap and detergent are some type of salts. What is the difference between them?
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
Why is common salt (sodium chloride) added during the preparation of soap?
Give any two differences between soaps and detergents.
What is the advantage of detergents over soaps for washing clothes?
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
What is meant by ‘surface activity’?
The saponification of a fat or oil is done using _____ solution for hot process.
The alkaline hydrolysis of fatty acids is termed as ______
Analogy:
Used to join components: Adhesives:: Clean the body ______.
