Question

1) "In case of butane the fully staggered
conformation is the most stable and
fully eclipsed conformation is the least
stable among all the conformations of
the molecule.” Why?​

Answer 1

Answer:

In terms of stability, the staggered conformation is more stable than the eclipses. This is for two reasons:

• Steric hindrance. In the eclipsed conformation, the positioning of the atoms forces them closer together, increasing the amount of steric strain in the molecule.

• Stabilization of the staggered conformation by hyperconjugation

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