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Why penicillin is called a beta -lactam ...

Why penicillin is called a `beta` -lactam antibiotic? Write the names and structures of five naturally occurring penicillin.

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CHHAYA PUBLICATION-CHEMISTRY IN EVERYDAY LIFE -EXERCISE
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  2. Differentiate between: broad spectrum antibiotics & narrow spectrum an...

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  3. Differentiate between : hormones & neurotransmitters.

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  4. Describe the process by which receptors transfer message to the cells....

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  5. Mention the differences between antiseptics and disinfectants and give...

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  6. Give one use of each of the following-(i) chloramphenicol, (ii) strept...

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  7. Why penicillin is called a beta -lactam antibiotic? Write the names an...

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  8. What are antifertility drugs? What are the components of an ordinary b...

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  9. What do you mean by the term 'food additives'? Give example.

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  10. What are artificial sweeteners and why are they used?

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  11. What is the relation between D-glucose and L-glucose? Among D-glucose ...

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  12. What are food preservatives and why they should be used in small quant...

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  13. What do you understand by the term 'antioxidants'? How do they preserv...

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  14. Give the chemical identity of oil or fat and soap. How soap is prepare...

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  15. How the following soaps are prepared? (i) toilet soap (ii) medicated s...

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  16. Give two disadvantages of soaps as cleansing agents.

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  17. What are anionic, cationic and non-ionic detergents? Give an example f...

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  18. What are the advantages of using detergents as cleansing agents over s...

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  19. What are biodegradable and non-biodegradable detergents and why are th...

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  20. Describe the cleansing action of a soap and a detergent.

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