Advertisements
Advertisements
प्रश्न
Soap is a salt of ______ and sodium hydroxide.
पर्याय
white cement
soap
detergent
wearing of bones
tooth decay
hard
soft
Portland
fatty acid
Advertisements
उत्तर
Soap is a salt of fatty acid and sodium hydroxide.
संबंधित प्रश्न
In a locality, hard water, required for an experiment, is not available. However, the following salts are available in the school laboratory:
1. Sodium sulphate
2. Calcium sulphate
3. Magnesium chloride
4. Sodium chloride
5. Calcium chloride
6. Potassium sulphate
Which of the above salts may be dissolved in water to obtain hard water for the experiment?
(A) 2, 3 and 5
(B) 1, 2 and 5
(C) 1, 2, 4 and 6
(D) 3 and 5 only
What are the raw materials required for making soap in a laboratory (or at home)?
Fill in the following blank with suitable word:
............. is better than soap for washing clothes when the water is hard.
In a soap micelle, the soap molecules are arranged radially with:
(a) ionic ends directed towards the centre and hydrocarbon ends directed outwards
(b) hydrocarbon ends directed towards the centre and ionic ends directed outwards
(c) both ionic ends and hydrocarbon ends directed toward the centre
(d) both hydrocarbon ends and ionic ends directed outwards
Why are soaps not suitable for washing clothes when the water is hard?
Give a scientific explanation.
Soap forms a precipitate in hard water.
Differentiate between:
Detergents and Soaps.
What are the two different types of molecules found in the soap?
Soaps are ester of which type of acids?
Analogy:
Used to join components: Adhesives:: Clean the body ______.
