Question

The number of 2 -centre- 2 -electron and 3-centre-2-electron bonds in $B _{2} H _{6}$, respectively, are :

• A. 2 and 4
• B. 2 and 1
• C. 2 and 2
• D. 4 and 2

Answer 1

Answer: (D)

4 and 2

Answer 2

According to structure, There are four $2-$ centre $-2-$ electron bonds and two $3-$ centre $- 2$ - electron bonds in $B _{2} H _{6}$.