1.

When borax is dissolved in waterA. `B(OH)_(3)` is formed onlyB. `[B(OH)_(4)]^(-)` is formed onlyC. both `B(OH)_(3)` and `[B(OH)_(4)]^(-)` are formedD. `[B_(3)O_(3)(OH)_(4)]^(-)` is formed only

Answer» Correct Answer - C
When borax is ……….
`[B_(4)O_(5)(OH)_(4)]^(2-)+5H_(2)OhArr2B(OH)_(3)+2[B(OH)_(4)]^(-)`
or
`[B_(4)O_(7)]^(2-)+7H_(2)Orarr2B(OH)_(3)+2[B(OH)_(4)]^(-)`


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