Question:
In the structure of diborane
(i) All hydrogen atoms lie in one plane and boron atoms lie in a plane
perpendicular to this plane.
(ii) 2 boron atoms and 4 terminal hydrogen atoms lie in the same plane
and 2 bridging hydrogen atoms lie in the perpendicular plane.
(iii) 4 bridging hydrogen atoms and boron atoms lie in one plane and two
terminal hydrogen atoms lie in a plane perpendicular to this plane.
(iv) All the atoms are on the same plane.
Solution:
Option (ii) 2 boron atoms and 4 terminal hydrogen atoms lie in the same plane
and 2 bridging hydrogen atoms lie in the perpendicular plane is the answer.