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प्रश्न
Give two examples of the following substance.
Fuel
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उत्तर
Two examples of Fuel:
1. L.P.G.
2. Petrol
3. Coal
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संबंधित प्रश्न
Give two examples of the following substance.
Fungicides
What is the contribution of chemistry in following field?
Clothing
Name the scientists who discovered the following:
Safety lamp
_____________ help to increase the production of food.
Food items like jams and pickles are protected by using ___________.
Differentiate between the terms food preservatives and food processing with appropriate examples.
Differentiate between natural fibres & synthetic fibres.
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.
Give reasons for the following
All medicines must be taken under proper doctors' supervision and in the correct dose.
