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प्रश्न
Write True or False against the following statement.
D.D.T. is an important fertiliser:
विकल्प
True
False
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उत्तर
False
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संबंधित प्रश्न
Give two examples of the following substance.
Food preservatives
Give two examples of the following substance.
Chemical war weapons
What is the contribution of chemistry in following field?
Clothing
Name the scientists who discovered the following:
Atoms
_____________ help to increase the production of food.
Fill in the blank:
L.P.G. is used for ___________
Choose the correct alternative from the choices given below for the following statement:
Mortar is used as a
Explain in brief the importance of Chemistry in the production of various products.
Preservatives are added to food or beverages.
Give reasons for the following
Ordinary soap is wasted in hard water.
