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प्रश्न
Give reasons for the following
Ordinary soap is wasted in hard water.
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उत्तर
Ordinary soap is wasted in hard water because hard water is one which does not lather with soap.
संबंधित प्रश्न
How is chemistry helpful in improving the health of human beings?
What is the contribution of chemistry in following field?
Clothing
What is the contribution of chemistry in following field?
Cosmetics
Name the scientists who discovered the following:
Atoms
Fill in the blank:
L.P.G. is used for ___________
Write True or False against the following statement.
Antibiotics are used as preservatives:
Choose the correct alternative from the choices given below for the following statement:
The chemicals prescribed by a doctor in the treatment of infectious diseases are called
Explain in brief the importance of Chemistry in agriculture.
Differentiate between the terms food preservatives and food processing with appropriate examples.
Give reasons for the following
Titanium dioxide is an important ingredient in cosmetics.
