Identify the compound A, X and Z in the following reactions: (i) A+2HCl+5H_(2)Orarr2NaCl+x (ii) Xunderset(370k)overset(Delta)rarrHBO_(2)underset(gt370k)overset(Delta)rarrZ

Identify the compound A, X and Z in the following reactions: (i) A+2H

1.	Identify the compound A, X and Z in the following reactions: (i) A+2HCl+5H_(2)Orarr2NaCl+x (ii) Xunderset(370k)overset(Delta)rarrHBO_(2)underset(gt370k)overset(Delta)rarrZ
Answer» Solution :(i) `underset("Borax (A)")(Na_(2)B_(4)O_(7))+2HCl+5H_(2)Orarr2NaCl+underset("Orthoboric ACID (X)")(4H_(3)BO_(3))` (ii) `H_(3)BO_(3)OVERSET(Delta,370K)(rarr) underset("Metaboric acid")(HBO_(2))+H_(2)O` (iii) `4HBO_(2) underset(-H_(2)O)overset(Delta gt370K)(rarr)underset("Tetraboric acid")([H_(2)B_(4)O_(7)])underset("Heat")overset("RED")(rarr)underset("BORON trioxide (Z)")(2B_(2)O_(3)+H_(2)O)`