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What are food predervatives?Give example...

What are food predervatives?Give example.

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NCERT TELUGU-CHEMISTRY IN EVERYDAY LIFE-Exercises
  1. Low level of noradrenaline in the cause of depression.What type of dru...

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  2. What is meant by the term broad spectrum antibiotics?Explain.

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  3. How do antiseptics differ from disinfectants?Does the same substance b...

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  4. Why are cimetidine and ranitidine better antacids than sodium hydrogen...

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  5. Name a substance which can be used as an antiseptic as well disindecta...

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  6. What are the main constituents of dettol?

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  7. What is tincture of iodine?What is its use?

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  8. What are food predervatives?Give example.

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  9. Why is the use if aspartame limited to cold foods and drinks?

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  10. What are artificail sweerening agents?Give example.

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  11. Name the sweetening agent used in the prepration of seets for a diabet...

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  12. What problem does arise in using alitame as artificial sweetener?

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  13. How are synthetic detergents better than soaps?

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  14. Explain the following terms with suitable examples (i) cationic dete...

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  15. What are biodegradable and non-bio degrable detergents?Give one exampl...

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  16. Why do soaps not work in hard water?

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  17. Can you use soaps and synthetic detergents to check the hardness of wa...

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  18. Explain the cleansing action of soaps.

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  19. If water contains dissolved calcium hydrogen carbonate,out of soaps an...

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  20. Label the hydrophilic and hydrophobic parts in the following compounds...

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