Na_(2)B_(4)O_(7).10H_(2)O overset(conc. HCl)rarr A overset(160^(@)C)rarr B. Compound 'B' is

Na_(2)B_(4)O_(7).10H_(2)O overset(conc. HCl)rarr A overset(160^(@)C)ra

1.	Na_(2)B_(4)O_(7).10H_(2)O overset(conc. HCl)rarr A overset(160^(@)C)rarr B. Compound 'B' is
Answer» `H_(2)B_4O_7` `B_(2)O_3` `H_3BO_(3)` `HBO_2` SOLUTION :`Na_(2)B_(4)O_(7).10H_(2)Ooverset(conc.HCl)rarrH_3BO_3overset(100^@C)rarrHBO_2overset(160^2C)rarrunderset("tetraboric ACID")(H_2B_4O_7)`