Given:
I II
I and II are classified as:
1. Identical
2. A pair of conformers
3. A pair of geometrical isomers
4. A pair of optical isomers
Subtopic:  Conformational Isomers |
 64%
Level 2: 60%+
NEET - 2013
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The most stable conformation of n-butane among the following is:

1. 2.
3. 4.
Subtopic:  Conformational Isomers |
 89%
Level 1: 80%+
AIPMT - 2010
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Links

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

Subtopic:  Conformational Isomers |
Level 3: 35%-60%
AIPMT - 2010
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