Advertisements
Advertisements
Question
What are the raw materials required for making soap in a laboratory (or at home)?
Solution
he raw materials required for making soap in a laboratory or at home are as follows:
1. Vegetable oil (Castor oil)
2. Sodium hydroxide (Caustic soda), and
3. Sodium chloride (Common salt)
APPEARS IN
RELATED QUESTIONS
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
Use of synthetic detergents causes pollution of water.
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
The chemical mostly used in the preparation of most of the soaps we use is
(a) Sodium chloride
(b) Potassium hydroxide
(c) Sodium hydroxide
(a) Potassium chloride
What is a soap?
What is the difference between soaps and detergents? State, in brief, the cleansing action of soaps in removing an oily spot from a fabric. Why are soaps not very effective when a fabric is washed in hard water? How is this problem resolved?
The saponification of a fat or oil is done using _____ solution for hot process.
______ are substances which can undergo chemical changes to produce certain materials.
The soap molecule has a
What are soaps?
