Question

When a manganese salt is heated with boric anhydride, a coloured bead is formed which is due to the formation of

• A. $M{n}_2{B}_4{O}_7$
• B. $MnO$
• C. $Mn(B{O}_2{)}_2$
• D. $Mnmetal$

Answer 1

The correct option is C $Mn(B{O}_2{)}_2$

$M_n{O}_{+}{B}_2{O}_3\to Mn{\left(B{O}_2\right)}_2$