underset(("Swollen white mass"))(Na_(2)B_(4)O_(7).XH_(2)O)overset(60^(@)C)rarr underset(("Glassy mass"))(Na_(2)B_(4)O_(7).YH_(2)O)overset(Delta)rarr Na_(2)B_(4)O_(7).ZH_(2)O overset(Delta)rarr B_(2)O_(3)+2NaBO_(2), then the valsue of (x-y+z) is

underset(("Swollen white mass"))(Na_(2)B_(4)O_(7).XH_(2)O)overset(60^(

1.	underset(("Swollen white mass"))(Na_(2)B_(4)O_(7).XH_(2)O)overset(60^(@)C)rarr underset(("Glassy mass"))(Na_(2)B_(4)O_(7).YH_(2)O)overset(Delta)rarr Na_(2)B_(4)O_(7).ZH_(2)O overset(Delta)rarr B_(2)O_(3)+2NaBO_(2), then the valsue of (x-y+z) is
Answer» SOLUTION :`Na_(2)B_(4)O_(7).10H_(2)Ooverset(60^@C)rarrNa_(2)B_(4)O_(7).5H_(2)Ooverset(Delta)rarr` `Na_(2) B_(4)O_(7) overset(Delta) rarr 2NaBO_(2) +B_(2)O_3` x = 10, y = 5 , Z = 10 x- y + z = 10 - 5 + 0 = 5