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प्रश्न
Fill in the blank:
Inert gases were discovered by ___________
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उत्तर
Inert gases were discovered by William Ramsay.
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संबंधित प्रश्न
Give two examples of the following substance.
Medicines
What is the contribution of chemistry in following field?
Cosmetics
Name the scientists who discovered the following:
Oxygen
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 agriculture.
Explain in brief the importance of Chemistry in the production of various products.
Explain how medicines are a boon to mankind. State the positive & negative effects of medicines like aspirin and paracetamol.
Give reasons for the following
Cosmetics may contain preservatives, as one of their ingredients.
Select the correct name from the choices given below for the following case.
A synthetic fibre used in clothing.
