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Pickles have a long shelf life and do no...

Pickles have a long shelf life and do not get spolled for months-why?

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Plenty of salt and cover of oil act as preservatives. These substances do not allow moisture and air to enter the material and hence bacteria cannot thrive on them. Therefore, pickles do not get spoiled for months together.
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CHHAYA PUBLICATION-CHEMISTRY IN EVERYDAY LIFE -QUESTION-ANSWER ZONE FOR BOARD EXAMINATION
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  2. Why BHA is added to butter?

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  3. Why are detergents called 'soapless soaps'?

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  4. Due to which structural feature, detergents become non-biodegradable

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  5. Why non-biodegradable detergents is not used?

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  7. The methyl ester of a dipeptide is 100 times sweeter than cane sugar....

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  8. Hair shampoos belong to which class of synthetic detergents?

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  9. Which analgesics called opiates?

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  10. Classify the following as artificial sweeteners, preservatives, soaps ...

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  11. What structural unit makes detergents non- biodegradable?

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  12. Pickles have a long shelf life and do not get spolled for months-why?

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  13. What is the advantage of using antihistamines over antacids?

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  14. Why is paracetamol preferred over aspirin as an antipyretic?

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  15. What are sulpha drugs? Give examples.

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  20. Why are detergents preferred over soaps?

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