Conformations of Butane
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Q.
If this is Energy vs Dihedral angle graph of Butane, then I, II and III are respectively :
Anti, Eclipsed, Gauche
Fully Eclipsed, Anti, Gauche
Gauche, Anti, Eclipsed
Fully Eclipsed , Gauche , Anti
Q.
Fully eclipsed conformation of butane is :
Q.
Gauche Conformation of butane is:
Q.
Which of the following is correct order of stability?
Gauche > Fully Eclipsed > Anti
Anti > Gauche > Fully Eclipsed
Fully Eclipsed > Gauche > Anti
Anti > Fully Eclipsed > Gauche
Q. In the following, the most stable conformation of n-butane is:
Q. Which of the following conformers for ethylene glycol is most stable?
Q.
In the above compound, C2 is rotated clockwise 120∘ about C2−C3 bond. The resulting conformer is:
Partially eclipsed
Eclipsed
Gauche
Staggered
Q. is the most stable conformation of butane.
- Gauche form
- Anti form
- Eclipsed form
- Fully eclipsed form
Q. Sort the following butane conformations according to stability.
- Anti form
- Fully eclipsed
- Partial eclipsed
- Gauche form
Q. Choose the incorrect statement(s) among the following:
- There are only six conformers for n-butane
- The keto form of acetylacetone in n-hexane is stable than the enol form
- The gauche form of ethylene glycol is more stable
- 8 isomers are possible for C4H6