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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?
Why do soaps not form lather in hard water?
Fill in the following blank with suitable word:
The sodium salt of a long chain fatty acid is called .............
Explain the process of preparation of soap in laboratory.
What is a detergent? Name one detergent.
What is the advantage of detergents over soaps for washing clothes? Also state one disadvantage.
A student is testing water to know which is best for cleansing purposes with soaps. He would find that the cleansing action of soaps is best when he uses water obtained from
(a) rain
(b) tap
(c) hand pump
(d) pond
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
Differentiate between:
Detergents and Soaps.
Why do soaps not work effectively in hard water?
