Q. 22

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Answer :

(a) It s safer to use soaps from the environmental point of view as they are less branched than detergents which make them less stable and easily biodegradable.

(b) The antiseptics can be used on living cells or tissue to prevent or cure septic infections and kill any pathogen (disease causing organisms) whereas disinfectants are used on non living things and surfaces to make them free from any infection causing germs.

(c) Pickles contain plenty of oil which acts like hydrophobic surface which keeps away the moisture. Also the added salt, absorbs any moisture, and act like preservative which don’t let any bacteria grow in pickle and prevent it from spoilage and make its shell life longer.

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