Which of the following statements are true for H_(3)BO_(3) ?

1.	Which of the following statements are true for H_(3)BO_(3) ?
Answer» It is mainly monobasic acid and a Lewis acid It does not ACT as a proton donor but acts as an acid by accepting hydroxyl ions It has layer struture in which `BO_3` units are joined by hydrogen bonds It is obtained by TREATING borax with conc. `H_2SO_4` SOLUTION :`B (OH)_(3)+H_(2)O rarr [B(OH)_(4)]^(-) + H^(+)` `H_3 BO_3` has layered structure with `BO_3` units are joined by hydrogen bonds `Na_(2) B_(4)O_(7) + H_(2)SO_(4) + 5H_(2)O rarr Na_(2) SO_(4) + 4H_(3) BO_3`

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