Question

5.Which is preservative (a)Sodium sulphate (b)Sodium chloride (c)Sodium benzoate (d)Sodium silicate​

Answer 1

Answer:

Sodium Benzoate or C6H5COONa is an effective preservative.So your answer is (b).

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Explanation:

Answer 2

Sodium Benzoate

Sodium benzoate is a substance which has the chemical formula C6H5COONa. It is a widely used food preservative, with an E number of E211. It is the sodium salt of benzoic acid and exists in this form when dissolved in water. It can be produced by reacting sodium hydroxide with benzoic acid