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Question


Which of the following is true about I and II?
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  1. I is eclipsed, II is staggered
  2. II is eclipsed, I is staggered
  3. both are eclipsed
  4. both are staggered

A
both are eclipsed
B
both are staggered
C
I is eclipsed, II is staggered
D
II is eclipsed, I is staggered
Solution
Verified by Toppr

The correct option is B II is eclipsed, I is staggered
II is having an eclipsed conformation since the two substituent hydrogen atoms on adjacent carbons are located at the closest proximity.

Similarily, I is having a staggered conformation since the two substituent hydrogen atoms on adjacent carbons are located farthest from each other.

Hence, B is the correct option.

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Similar Questions
Q1
Which of the following is true regarding stability of eclipsed and staggered conformation?
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Q2
Match the column I with column II:

(A) Acetaldehyde, Vinylalcohol
(I) Enantiomers
(B) Eclipsed and staggered ethane
(II) Tautomers
(C) (+)2 butanol, (-)2-butanol
(III) Chain isomers
(D) Methyl-n-propylamine and Diethylamine
(IV) Conformational isomers
(V) Metamer

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Q3
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Q4

Energy barrier between staggered and eclipsed conformation of ethane is?


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Q5
Assertion :Staggered conformation of ethane is most stable while eclipsed conformation is least stable. Reason: Staggered form has the least torsional strain and the eclipsed form has the maximum torsional strain.
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