Consider the following statements about and bonds: (I) A bond determines the direction between atoms — Chemical Bonding Chemistry Question
Question
Consider the following statements about $\sigma$ and $\pi$ bonds: (I) A $\sigma$ bond determines the direction between atoms. (II) A $\pi$ bond restricts free rotation. (III) A $\pi$ bond is stronger than a $\sigma$ bond. Which is/are correct?
Answer: A
💡 Solution & Explanation
A $\sigma$ bond (head-on overlap) is stronger and allows free rotation. A $\pi$ bond (lateral overlap) locks the atoms in place, preventing rotation. $\pi$ bonds are weaker than $\sigma$ bonds.
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