Q
QuestionChemistry

"Which of the following molecules contains 1 sigma (σ) and 2 pi (π) bonds? A. Li^2 B. B^2 C. N^2 D. O^2 E. F^2"
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Answer

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Step 1:
Let's solve this step by step:

Step 2:
: Understand Bond Types

- Sigma (σ) bonds form by direct head-on overlap of atomic orbitals - Pi (π) bonds form by side-to-side overlap of p orbitals - We need to count the number of σ and π bonds in each molecule

Step 3:
: Analyze Electron Configuration

- Electron configuration: $$1s^{2} 2s^{2} 2p^{5}
Let's examine the electron configurations and bonding for each molecule: A. Li^2 - Single sigma bond, no pi bonds - Does NOT match the requirement B. B^2 - Single sigma bond, single pi bond - Does NOT match the requirement C. N^2 - Single sigma bond, two pi bonds - MATCHES the requirement ✓ D. O^2 - Single sigma bond, two pi bonds - MATCHES the requirement E. F^2 - Single sigma bond, single pi bond - Does NOT match the requirement

Final Answer

N^2 contains 1 sigma (σ) and 2 pi (π) bonds.