question_answer 56)

  In the structure of diborane: (a) all hydrogen atoms lie in one plane and boron atoms lie in a plane perpendicular to this plane (b) 2 boron atoms and 4 terminal hydrogen atoms lie in the same plane and 2 bridging hydrogen atoms lie in the perpendicular plane (c) 4 bridging hydrogen atoms and boron lie in one plane and two terminal hydrogen atoms lie in a plane perpendicular to this plane (d) all the atoms are in the same plane

Answer:

  (b)          Four terminal hydrogen atoms and two boron atoms lie in die same plane and two hydrogen atoms forming bridges lie in a plane perpendicular to the rest of the molecule.