Question

15.Give equation????????​

Answer 1

$\huge\underline{\underline{\bf \green{Question-}}}$

How diborane prepared from ${\sf BF_3}$ using ${\sf LiAlH_4}$ ? Give Equation.

$\huge\underline{\underline{\bf \green{Solution-}}}$

${\sf BF_3}$ react with ${\sf LiAlH_4}$ in presence of diethylether and gives diborane

${\sf \red{4BF_3+3LiAlH_4→2B_2H_6+3LiAlH_4+3AlF_3} }$

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

Some other methods of preparation of diborane is ➝

✰${\bf 2NaBH_4+I_2→\red{B_2H_6}+2NaI+H_2}$

✰${\bf 2BF_3+6NaH→\red{B_2H_6}+6NaF}$