Question

In diborane the two $H-B-H$ angles are nearby:

• A. ${60}^0,{120}^0$
• B. ${97}^0,{120}^0$
• C. ${97}^0,{150}^0$
• D. ${120}^0,{180}^0$

Answer 1

The correct option is B ${97}^0,{120}^0$

The structure of diborane is shown with bond angles and bond lengths.

Two bridge bonds are $3-centre-2-electron$ bonds.

In the diborane two $H-B-H$ are near by ${95}^{\circ },{120}^{\circ }$.