Brine isA.Aqueous solution of chloridesB.Saturated solution of NaClC.Aqueous solution of HClD.Common name of bleaching powder

To solve the question regarding the definition of brine, let's analyze the options provided:

Aqueous solution of chlorides: This is a broad definition, as it could refer to any solution containing chlorides, not specifically brine.

Saturated solution of NaCl: This is the correct answer. Brine specifically refers to a saturated solution of sodium chloride (NaCl) in water. It is commonly used in various industrial processes, food preservation, and even in making certain chemicals.

Aqueous solution of HCl: This option refers to hydrochloric acid, which is not related to brine. HCl is a strong acid and does not represent brine.

Common name of bleaching powder: Bleaching powder is chemically known as calcium hypochlorite (Ca(OCl)₂) and is not synonymous with brine.

Conclusion
The correct answer is B. Saturated solution of NaCl.

Explanation
Brine: In chemistry, brine is typically a solution of salt (sodium chloride) in water. A saturated solution means that the solution contains the maximum amount of solute (NaCl) that can dissolve at a given temperature, leading to undissolved salt at the bottom of the solution if it is stirred.
Applications: Brine is commonly used in food preservation (like pickling), in the production of chemicals, and in refrigeration processes.