An aqueous solution of a salt is known as brine. The salt is :

Sodium chloride

Potassium chloride

Calcium chloride

Sodium nitrate

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UPSC CAPF – 2023

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Brine is the term used for a highly concentrated aqueous solution of sodium chloride (NaCl). While other salt solutions exist, “brine” specifically refers to sodium chloride solution, often much more concentrated than seawater. Seawater itself is a form of brine, but artificial brines are typically prepared by dissolving large amounts of NaCl in water for industrial or culinary purposes.

Brine is a concentrated aqueous solution of sodium chloride (common salt).

Brine has various uses, including food preservation, as a heat-transfer fluid, for de-icing roads, and in industrial processes like chlor-alkali production.

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