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प्रश्न
Choose the correct alternative from the choices given below for the following statement:
Mortar is used as a
विकल्प
plastic material Urea is an
a building material
an insecticide
as medicine
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उत्तर
a building material
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संबंधित प्रश्न
Give two examples of the following substance.
Food preservatives
Name the chemicals which help in increasing food production.
What is the contribution of chemistry in following field?
Industry
Name the scientists who discovered the following:
Oxygen
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 the production of various products.
State the contributions of Dimitri Mendeleev
Explain the term ‘cosmetics’ ‘talc’. Name a few main ingredients in cosmetics the role they play.
