Question

 Which of the following in correct statement? 

(a) B₂H₆ is Lewis Acid

(b) All the B-H bonds in B₂H₆ are equal

(c) B₂H₆ has planar structure

(d) Maximum no. of hydrogen in one plane is six

Answer 1

(a) B₂H₆ is Lewis Acid

The structure of diborane is shown in Fig. The four terminal hydrogen atoms and the two boron atoms lie in one plane. Above and below this plane, there are two bridging hydrogen atoms. The four terminal B-H bonds are regular two center-two electron bonds while the two bridge (B-H-B) bonds are different and can be described in terms of three structure of diborane, B₂H₆