Chemistry in Everyday Life

Short Answer Type

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What do you mean by food preservation?

Food preservation is the process of treating and handling food to stop or greatly slow down spoilage (loss of quality, edibility or nutritive value) caused or accelerated by micro-organisms. The most commonly used preservatives include table salt, sugar, vegetable oils and sodium benzoate.
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    Name one chemical which preserves colourless fruit juices.

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    What does sodium benzoate actually do when it is mixed with fruit juices or squash?

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