Question

Boric acid is prepared from borax by the action of

• A. HCl
• B. NaOH
• C. $C{O}_2$
• D. $N{a}_{2}C{O}_3$

Answer 1

The correct option is A HCl

Boric acid is prepared by acidifying an aqueous solution of borax. The reaction is as follows:
$N{a}_2{B}_4{O}_7+2HCl+5H_{2}O\to 2NaCl+4H_{3}B{O}_3$
Hence option a is correct.