Which of the following reactions is not used to prepare diborane?A. `BF_(3) + NaH overset(180^(@)C)rarr`B. `B_(2)O_(3) + CaF_(2) + conc.H_(2)SO_(4) rarr`C. `Na[BH_(4)] + I_(2) underset("solution")overset("Diglyme")rarr`D. `(C_(2)H_(5))_(2)O.BF_(3) + LiAlH_(4) rarr`

Which of the following reactions is not used to prepare diborane?A. `B

1.	Which of the following reactions is not used to prepare diborane?A. `BF_(3) + NaH overset(180^(@)C)rarr`B. `B_(2)O_(3) + CaF_(2) + conc.H_(2)SO_(4) rarr`C. `Na[BH_(4)] + I_(2) underset("solution")overset("Diglyme")rarr`D. `(C_(2)H_(5))_(2)O.BF_(3) + LiAlH_(4) rarr`
Answer» Correct Answer - B It leads to the formation of boron trifluoride: `B_(2)O_(3) + 3CaF_(2) + conc.3H_(2)SO_(4) overset(Delta)rarr 2BF_(3) + 3CaSO_(4) + 3H_(2)O` Other possibility is `B_(2)O_(3) + 6NH_(4)BF_(4) overset(Delta)rarr 8BF_(3) + 6NH_(3) + 3H_(2)O` (1) `2BF_(3) + 6NaH overset(180^(@)C)rarr B_(2)H_(6) + 6NaF` (2) `2Na[BH_(4)] + I_(2) rarr B_(2)H_(6) + H_(2) + 2NaI` (4) `4[Et_(2)O.BF_(3)] + 3Li[AlH_(4)] rarr 2B_(2)H_(6) + 3Li[AlF_(4)] + 4Et_(2)O`

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Which of the following reactions is not used to prepare diborane?A. `BF_(3) + NaH overset(180^(@)C)rarr`B. `B_(2)O_(3) + CaF_(2) + conc.H_(2)SO_(4) rarr`C. `Na[BH_(4)] + I_(2) underset("solution")overset("Diglyme")rarr`D. `(C_(2)H_(5))_(2)O.BF_(3) + LiAlH_(4) rarr`

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