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प्रश्न
The saponification of a fat or oil is done using _____ solution for hot process.
विकल्प
Ammonium hydroxide
Sodium hydroxide
Hydrochloric acid
Sodium chloride
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उत्तर
The saponification of a fat or oil is done using hydrochloric acid solution for the hot process.
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संबंधित प्रश्न
Describe in brief the cleansing action of soap.
In the neighbourhood of your school, hard water required for an experiment is not available. Select from the following group of salts available in your school, a group each member of which, if dissolved in distilled water, will make it hard:
(a) Sodium chloride, calcium chloride
(b) Potassium chloride, sodium chloride
(c) Sodium chloride, magnesium chloride
(d) Calcium chloride, magnesium chloride
Why does micelle formation take place when soap is added to water? Will a micelle be formed in other solvents such as ethanol also?
What change will you observe if you test soap with litmus paper (red and blue)?
A student requires hard water for an experiment in his laboratory which is not available in the neighbouring area. In the laboratory there are some salts, which when dissolved in distilled water can convert it into hard water. Select from the following groups of salts, a group, each salt of which when dissolved in distilled water will make it hard.
(A) Sodium chloride, Potassium chloride
(B) Sodium sulphate, Potassium sulphate
(C) Sodium sulphate, Calcium sulphate
(D) Calcium sulphate, Calcium chloride
Explain esterification reaction with the help of a chemical equation. Describe an activity to show esterification.
State one advantage of soaps over detergents.
What is a soap?
Give a scientific explanation.
Soap forms a precipitate in hard water.
Soap is a salt of ______ and sodium hydroxide.
