The number of bonds in nitrogen molecule is:
Correct answer: C. One σ and two π
- A. One σ and three π
- B. Three σ bonds only
- C. One σ and two π
- D. Two σ and one π
Explanation
In a nitrogen molecule (N2), there are one sigma (σ) bond and two pi (π) bonds.The sigma bond is formed by the head-on overlap of the two nitrogen 2p orbitals, resulting in the sharing of two electrons.The two pi bonds are formed by the side-to-side overlap of the remaining 2p orbitals, one from each nitrogen atom. Each pi bond involves the sharing of two electrons, one in a π bonding molecular orbital and one in a π antibonding molecular orbital, for a total of four electrons shared between the two pi bonds.
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About Chemical Bonding
Chemical bonding explains molecular shape through VSEPR theory and distinguishes sigma bonds from pi bonds. Questions involve hybridization, bond angles, dipole moment and bond energy, including how electron-pair repulsion determines geometry and how bond polarity differs from the overall polarity of a molecule.
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