Question:
Most stable conformation of ethane:
Most stable conformation of ethane:
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Staggered = Stable (max distance between H atoms).
Updated On: May 15, 2026
- Staggered
- Skew
- Eclipsed
- Gauche
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The Correct Option is A
Solution and Explanation
Step 1: Concept
Conformations are different spatial arrangements of atoms resulting from rotation around single bonds.
Step 2: Meaning
Stability is determined by the minimization of torsional strain and steric repulsion.
Step 3: Analysis
In the staggered conformation, C-H bonds on adjacent carbons are as far apart as possible (dihedral angle 60$^\circ$). In the eclipsed conformation, they are aligned, causing maximum repulsion.
Step 4: Conclusion
Staggered is the lowest energy and thus the most stable conformation of ethane. Final Answer: (A)
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