Brine is an aqueous solution of

NaCl

NaOH

NaHCO₃

Na₂CO₃

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Answer is Wrong!

This question was previously asked in

UPSC NDA-1 – 2018

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The correct answer is A) NaCl.

Brine is an aqueous solution of sodium chloride (NaCl), commonly known as table salt. It is a solution of salt dissolved in water, typically with a high concentration of NaCl. Seawater is a naturally occurring brine, although brine can also be produced by dissolving rock salt deposits in water.

Brine is used for various purposes, including food preservation (pickling), industrial processes (like chlor-alkali production), road de-icing, and as a heat transfer fluid. The concentration of NaCl in brine can vary widely, but it is generally significantly higher than that of normal drinking water.

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