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How to boron obtainedfrom borax ? Give chemical equationswith reactionconditions. Write the structureof B_(2)H_(6) and its reactionwith HCl. |
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Answer» Solution :`underset("BORAX")(Na_(2)B_(4)O_(7).10H_(2)O)+H_(2)SO_(4) ("conc".) 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 ")rarrunderset(" Boric oxide ")B_(2)O_(3) + 3H_(2)O` `B_(2)O_(3)+3Mgoverset(Delta)rarr2B + 3MgO` For structureof `B_(2)H_(6)`. With dry `HCL,B_(2)H_(6)`evolves `H_(2)` gas `B_(2)H_(6) + HCl ("dry") rarr B_(2)H_(5)CL + H_(2)` |
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