Question

Addition of mineral acid to an aqueous solution of Borax, the following compound is formed

• A. Boron hydride
• B. Orthoboric acid
• C. Meta boric acid
• D. Pyroboric acid

Answer 1

Answer: (B)

Orthoboric acid

Answer 2

$Na _{2} B _{4} O _{7}+ H _{2} SO _{4}+5 H _{2} O \to Na _{2} SO _{4}+4 H _{3} BO _{3}$ Addition of mineral acid to an aqueous solution of borax, orthoboric acid is formed