Q.

Which of the following is a chemical preservative?

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a

Potassium sulfide

b

Ferric chloride

c

Calcium chloride

d

Sodium benzoate

answer is D.

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Detailed Solution

Chemical preservatives are substances added to food products to extend their shelf life and prevent spoilage caused by bacteria, molds, and yeast. Some common examples include sodium benzoate, potassium sorbate, calcium propionate, and sodium nitrite.

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