Which of the following structural and bonding features accurately describe the diborane () molecule? — p Block Elements Chemistry Question

💡 Solution & Explanation

Diborane contains two bridging hydrogen atoms that create two 3c-2e banana bonds. The four terminal hydrogens form normal 2c-2e bonds. The B atoms are $sp^3$ hybridized. The bridging B-H-B bonds are actually longer ($1.33 \text{ \AA}$) and weaker than the terminal B-H bonds ($1.19 \text{ \AA}$).