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प्रश्न
What is meant by ‘surface activity’?
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उत्तर
The surface activity of a substance is the property by virtue of which it can spread on a surface. For example, soapy water easily spreads on any kind of surface and thus is used for cleaning purposes.
संबंधित प्रश्न
State one use of esterfication process.
The sodium salt of a long chain fatty acid is called ______.
Describe the structure of a soap molecule with the help of a diagram.
Give the reason of formation of scum when soaps are used with hard water.
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
Explain the action of soap in removing an oily spot from a piece of cloth.
How will you check with the help of soap powder whether water is hard?
The alkaline hydrolysis of fatty acids is termed as ______
______ are substances which can undergo chemical changes to produce certain materials.
- Write the formula and draw electron dot structure of carbon tetrachloride.
- What is saponification? Write the reaction involved in this process.
