A common preservatives used in jam and pickles is

Sodium benzoate

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Nitric acid

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Sodium chloride

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Copper sulphate

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Solution

The correct option is A Sodium benzoate
Sodium benzoate is a preservative used in jams. Benzoic acid is absorbed into the cell that decreases the intracellular pH. Hence the anaerobic fermentation of glucose through phosphofructokinase decreases. This inhibits survival of microorganisms that cause food spoilage. Thus, the correct answer is option A.

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Similar questions

Name two fruits which are preserved :

(a) in the form of pickles .

(b) in the form of jams.

Name the salt which is used as a preservative in pickles, and in curing meat and fish.

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