The number of three-centered two-electron bonds in diborane is 2.

Here's the step-by-step explanation:

1. Diborane (B2H6) is a boron hydride with a unique structure.

2. In diborane, there are two boron atoms and six hydrogen atoms.

3. Each boron atom is bonded to four hydrogen atoms, but only three of these bonds are conventional two-electron bonds.

4. The fourth bond is a three-centered two-electron bond, also known as a 'banana bond'.

5. This bond involves one electron from each boron atom and one from a bridging hydrogen atom.

6. Since there are two boron atoms in diborane, there are two such three-centered two-electron bonds.

Question

The number of three-centered two-electron bonds in diborane is 2.

Here's the step-by-step explanation:

1. Diborane (B2H6) is a boron hydride with a unique structure.

2. In diborane, there are two boron atoms and six hydrogen atoms.

3. Each boron atom is bonded to four hydrogen atoms, but only three of these bonds are conventional two-electron bonds.

4. The fourth bond is a three-centered two-electron bond, also known as a 'banana bond'.

5. This bond involves one electron from each boron atom and one from a bridging hydrogen atom.

6. Since there are two boron atoms in diborane, there are two such three-centered two-electron bonds.

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