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Increasing order of stability among the three main conformation (i.e. eclipse, anti, gauche) of ethylene glycol is:
  • a)
    Eclipse, gauche, anti
  • b)
    Gauche, eclipse, anti
  • c)
    Eclipse, anti, gauche
  • d)
    Anti, gauche, elipse
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Increasing order of stability among the three main conformation (i.e. ...


Stability order ⇒ Gauche > Anti > Eclipse
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Increasing order of stability among the three main conformation (i.e. ...
Explanation:

Ethylene glycol, also known as 1,2-ethanediol, is a simple molecule with two hydroxyl groups (OH) attached to a central carbon atom. The stability of its conformations depends on the interactions between these hydroxyl groups.

1. Eclipse Conformation:
In the eclipse conformation, the two hydroxyl groups are directly aligned with each other, resulting in steric hindrance or repulsion between them. This creates a higher energy state and makes the eclipse conformation the least stable among the three.

2. Anti Conformation:
In the anti conformation, the two hydroxyl groups are oriented in opposite directions, resulting in minimal steric hindrance. This leads to a lower energy state and makes the anti conformation more stable than the eclipse conformation.

3. Gauche Conformation:
In the gauche conformation, the two hydroxyl groups are oriented in a staggered manner but are not fully opposite to each other. This creates some steric hindrance between the hydroxyl groups, making the gauche conformation less stable than the anti conformation but more stable than the eclipse conformation.

Increasing Order of Stability:
Based on the above explanations, the increasing order of stability among the three main conformations of ethylene glycol is as follows:

1. Eclipse (least stable)
2. Anti (more stable than eclipse)
3. Gauche (most stable)

Therefore, the correct answer is option C, which states that the stability increases in the order of eclipse, anti, and gauche.
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Increasing order of stability among the three main conformation (i.e. eclipse, anti, gauche) of ethylene glycol is:a)Eclipse, gauche, antib)Gauche, eclipse, antic)Eclipse, anti, gauched)Anti, gauche, elipseCorrect answer is option 'C'. Can you explain this answer?
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