Identify the conpound A, X and Zin the following reactions : (i) A + 2HCl + 5H_(2)O rarr 2NaCl + X , (ii)X overset(Delta)underset(370K)(rarr) HBO_(2) overset(Delta)underset(gt370 K)rarr Z

Identify the conpound A, X and Zin the following reactions : (i) A + 2

1.	Identify the conpound A, X and Zin the following reactions : (i) A + 2HCl + 5H_(2)O rarr 2NaCl + X , (ii)X overset(Delta)underset(370K)(rarr) HBO_(2) overset(Delta)underset(gt370 K)rarr Z
Answer» Solution :(i) `underset("Borax (A)")(Na_(2)B_(4)O_(7)) +2HCL + 5H_(2)O RARR 2NaCl + underset(" Boric ACID (X) ")(4H_(3)BO_(3))` (ii) `underset((X)) OVERSET(Delta, 370 K)rarr underset(" Metaboric acid ")(HBO_(2)) + H_(2)O` `4HBO_(2)underset(-H_(2)O)overset(Delta, gt 370 K)rarr underset(" Tetraboric acid ")([H_(2)B_(4)O_(7)]) overset(" Red HEAT ")rarr underset(" Boron trioxide (Z) ")(2B_(2)O_(3)) + H_(2)O`