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प्रश्न
What is a soap?
उत्तर
A soap can be defined as a sodium or potassium salt of higher fatty acids such as oleic acid (C17H33COOH), stearic acid (C17H35COOH), palmitic acid (C15H31COOH), etc.
संबंधित प्रश्न
Both soap and detergent are some type of salts. What is the difference between them?
Which of the following sets of materials can be used for conducting a saponification reaction for the preparation of soap?
(a) Ca(OH)2 and neem oil
(b) NaOH and neem oil
(c) NaOH and mineral oil
(d) Ca(OH)2 and mineral oil
Hard water is not available for an experiment. Some salts are given below :
(I) Sodium chloride
(II) Sodium sulphate
(III) Calcium chloride
(IV) Calcium sulphate
(V) Potassium chloride
(VI) Magnesium sulphate
Select from the following group of these salts, each member of which may be dissolved in water to make it hard.
(A) I, II, V
(B) I, III, V
(C) III, IV, VI
(D) II, IV, VI
State one advantage of soaps over detergent.
Why is soap not suitable for washing clothes when the water is hard?
The soap molecule has a ______.
Which one of the following sets of materials can be used to prepare soap?
(A) Neem oil and calcium hydroxide
(B) Castor oil and sodium hydroxide
(C) Mineral oil and sodium hydroxide
(D) Neem oil and magnesium hydroxide
Give a scientific explanation.
Soap forms a precipitate in hard water.
TFM in soaps represents ______ content in soap.
______ are substances which can undergo chemical changes to produce certain materials.
