Question

Which of the following conformers for ethylene glycol is most stable?

Answer 1

In almost all compounds the anti-conformation is the most stable. But in the case of compounds like 2-fluoroethanol and ethylene glycol the gauche confirmation is more stable. The traditional way to describe it is via hydrogen bonding. But I'm afraid it's slightly more complicated.

MARK BRAINLIEST

Answer 2

Answer: The answer is Option a

Explanation:

In case of ethylene glycol gauche form is more stable

Because this form is stabilized by Hydrogen bonding

Although hydrogen bonding is also responsible in eclipsed form but due to high torsional strain it becomes less stable.

The order of stability of ethylene glycol conformers are as follows:-

Eclipsed< staggered< gauche

I hope this helps :)