Diborane is a Lewis acid forming addition compound ${\mathrm{B}}_2{\mathrm{H}}_6.2{\mathrm{NH}}_3 \mathrm{with} {\mathrm{NH}}_3,$a Lewis base. This

• A

  Is ionic and exists as ${\left[{\mathrm{BH}}_2{\left({\mathrm{NH}}_3\right)}_2\right]}^{+} \mathrm{and} {\left[{\mathrm{BH}}_4\right]}^{-}$ ions

• B

  On heating, is converted into borazine, ${\mathrm{B}}_3{\mathrm{N}}_3{\mathrm{H}}_6$ (called inorganic benzene)

• C

  Both 1 and 2 are correct

• D

  Neither 1 nor 2 is correct