Sodium metabisulphate is a chemical used to preserve ketchup.
Chemicals like sodium benzoate and sodium metabisulphate are used to store jams, ketchup, fruit juices, etc.
Therefore, the given statement is true.
Chemical preservatives like benzoic acid and sodium benzoate are commonly used to preserve milk.
Name the chemical which is used as a preservative in pickles and curing fish.