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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?
Industry
What is the contribution of chemistry in following field?
Medicines
Food items like jams and pickles are protected by using ___________.
Explain in brief the importance of Chemistry in the production of various products.
Differentiate between the terms food preservatives and food processing with appropriate examples.
Explain how medicines are a boon to mankind. State the positive & negative effects of medicines like aspirin and paracetamol.
Give reasons for the following
Ordinary soap is wasted in hard water.
Give reasons for the following
Cosmetics may contain preservatives, as one of their ingredients.
Give reasons for the following
All medicines must be taken under proper doctors' supervision and in the correct dose.
