`Ca_(2)B_(6)O_(11)+Na_(2)CO_(3)overset(Delta)rarr[X]+CaCO_(3)+NaBO_(2)` (unbalanced equation) Correct choice (s) for [X] is/are :A. X with `NaOH(aq)`, gives a compound which on reaction with `H_(2)O_(2)` in alkaline medium yield a compound used as a brightner in soaps.B. Structure of anion of crystalline [X] has one boron atom `sp^(3)` hybridised and other three boron atoms `sp^(2)` hydridiseed.C. Hydrolysis of `[X]` with `HCl` or `H_(2)SO_(4)` yields a compound on reaction with HF gives fluoroboric acid.D. [X] on heating with chromium salts in oxidising flame green coloured bead.

`Ca_(2)B_(6)O_(11)+Na_(2)CO_(3)overset(Delta)rarr[X]+CaCO_(3)+NaBO_(2)

1.	`Ca_(2)B_(6)O_(11)+Na_(2)CO_(3)overset(Delta)rarr[X]+CaCO_(3)+NaBO_(2)` (unbalanced equation) Correct choice (s) for [X] is/are :A. X with `NaOH(aq)`, gives a compound which on reaction with `H_(2)O_(2)` in alkaline medium yield a compound used as a brightner in soaps.B. Structure of anion of crystalline [X] has one boron atom `sp^(3)` hybridised and other three boron atoms `sp^(2)` hydridiseed.C. Hydrolysis of `[X]` with `HCl` or `H_(2)SO_(4)` yields a compound on reaction with HF gives fluoroboric acid.D. [X] on heating with chromium salts in oxidising flame green coloured bead.
Answer» Correct Answer - A::C::D

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