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The number of bonding molecular orbitals and the number of available skeletal electrons in [B6H6]2−, respectively, are
- a)7 and 14
- b)6 and 12
- c)18 and 12
- d)6 and 14
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
The number of bonding molecular orbitals and the number of available s...
[B6H6]2− has 6 + 1 = 7 binding molecular orbital
- [B6H6]2− has B - H bond and each bond contributes 2 electrons.
- Total number of electrons
= 2 × 6 + 2 (for 2 negative charge)
= 12 + 2
= 14 e-
= 12 + 2
= 14 e-
- Hence, the number of bonding molecular orbitals and the number of available skeletal electrons in [B6H6]2−, respectively, are 7 and 14.
- Correct option is (a).
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The number of bonding molecular orbitals and the number of available s...
Number of Bonding Molecular Orbitals and Available Skeletal Electrons in [B6H6]2−
Number of Bonding Molecular Orbitals:
- The boron atoms in [B6H6]2− are sp3 hybridized, forming σ bonds with the hydrogen atoms.
- Each boron atom contributes one electron to the bonding molecular orbitals.
- Therefore, there are a total of 6 boron atoms, each contributing 1 electron, resulting in 6 bonding molecular orbitals.
Number of Available Skeletal Electrons:
- Each boron atom in [B6H6]2− contributes 3 valence electrons.
- There are 6 boron atoms, so the total number of available skeletal electrons is 6 boron atoms x 3 valence electrons = 18 electrons.
- The 2− charge indicates that 2 electrons are removed, leaving 18 - 2 = 16 available skeletal electrons.
Therefore, the correct answer is option 'A' - 7 bonding molecular orbitals and 14 available skeletal electrons in [B6H6]2−.
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The number of bonding molecular orbitals and the number of available skeletal electrons in[B6H6]2−,respectively, area)7 and 14b)6 and 12c)18 and 12d)6 and 14Correct answer is option 'A'. Can you explain this answer?
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