Advertisements
Advertisements
प्रश्न
Explain why often coloured spots are formed on clothes during washing.
Advertisements
उत्तर
The laundry, skincare, beauty, and personal hygiene products that we use commonly can cause stains and color changes in our clothes. Toothpaste, perspiration, facial soap, deodorants, hair sprays, strong perfumes with alcohol, and even rain are often the causes of stains on garments. All these stains may eventually dry up, not causing any visible stain; however, age and exposure to heat will cause them to reappear.
संबंधित प्रश्न
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
State one use of esterfication process.
The chemical which is not required for the preparation of soap in the laboratory is:
(a) vegetable oil
(b) baking soda
(c) caustic soda
(d) common salt
Name three chemicals responsible for the surface activity of various detergents.
What are the differences between Bath soap and soap for washing clothes?
The saponification of a fat or oil is done using _____ solution for hot process.
What are the two different types of molecules found in the soap?
Soaps are ester of which type of acids?
______ to remove strong strains on the clothes.
- Write the formula and draw electron dot structure of carbon tetrachloride.
- What is saponification? Write the reaction involved in this process.
