How is boron obtained from borax ? Give chemical equations with reaction conditions and its reaction with HCI.

How is boron obtained from borax ? Give chemical equations with reacti

1.	How is boron obtained from borax ? Give chemical equations with reaction conditions and its reaction with HCI.
Answer» Solution :`Na_(2)B_(4)O_(7).10H_(2)O+H_(2)SO_(4) rarr Na_(2)SO_(4) rarr Na_(2)SO_(4)+ underset ("Tetraboric acid") (H_(2)B_(4)O_(7)) +10H_(2)O` `H_(2)B_(4)O_(7)+5H_(2)Orarr underset ("Boric acid")(4H_(3)BO_(3))` `2H_(3)BO_(3) overset ("RED HEAT")rarr underset("Boric oxide")(B_(2)O_(3))+3H_(2)O` `B_(2)O_(3)+3Mg overset ("heat ")rarr2B+3MgO` with dry HCI , `B_(2) H_(6)` evolves `H_(2)` gas `B_(2) h_(6) + underset(("dry")) (HCI) rarr B_(2)H_(5)CI+H_(2)`