An aqueous solution of sodium chloride is known as?

Correct option is A

The correct answer is (A)  ​brine

​Brine is a concentrated solution of sodium chloride (NaCl) in water. It is commonly known as saltwater.​

• Brine naturally occurs in salt lakes and on the ocean floor.
• It is widely used as a preservative in food processing, such as meat packing and pickling.
• When electricity is passed through brine in a process called the chlor-alkali process, it produces sodium hydroxide (NaOh), along with chlorine and hydrogen gas.

Information booster:

Lime stone

Limestone is a sedimentary rock composed mainly of calcium carbonate (CaC$$O_3$$​).

• It is widely used in the construction industry for making cement and concrete.
• It is also used to produce lime and as a raw material in the chemical industry.

​Caustic soda

Caustic soda, also known as sodium hydroxide (NaOH), is a strong alkali.

• It is manufactured using the chlor-alkali process.
• It is used in making soap, paper, textiles, and cleaning agents.

Lime

Lime, also known as quicklime, is calcium oxide (CaO).

• It is produced by heating limestone in a process called calcination.
• Lime is used to make slaked lime (Ca(OH$$)_2)$$​ by mixing it with water.
• It has applications in agriculture, construction, and water treatment.