Question

Which of the following statements regarding borax is correct?

• A. It is used in the manufacture of optical glass
• B. It is widely used as a flux
• C. It is used in leather industry
• D. All are correct

Answer 1

The correct option is D All are correct

Borax is widely and diversely used, e.g., as a mild antiseptic, a cleansing agent, a water softener, a corrosion inhibitor for

antifreeze, a flux for silver soldering, and in the manufacture of enamels, shellacs, heatresistant glass (e.g., Pyrex), fertilizers,

pharmaceuticals, and other chemicals.

It is sometimes used as a preservative but is toxic if consumed in large doses.