Chemistry · CHEMICAL BONDING AND MOLECULAR STRUCTURE
हिन्दीGiven below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): A sigma (\( \sigma \)) bond is stronger than a pi (\( \pi \)) bond. Reason (R): The extent of overlapping of atomic orbitals along the internuclear axis in a sigma bond is greater than the sidewise overlapping in a pi bond. In the light of the above statements, choose the correct answer from the options given below:
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Correct answer · Option A
Both (A) and (R) are true and (R) is the correct explanation of (A).
Explanation
The strength of a covalent bond depends directly on the extent of orbital overlap; axial overlap in \( \sigma \) bonds is greater than sidewise overlap in \( \pi \) bonds.