Organic Chemistry Basics 1 Question 24

30. The correct statement(s) concerning the structures $E, F$ and $G$ is/are

$(E)$

(a) $E, F$ and $G$ are resonance structures

(b) $E, F$ and $E, G$ are tautomers

(c) $F$ and $G$ are geometrical isomers

(d) $F$ and $G$ are diastereomers

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Answer:

Correct Answer: 30. $(a, c)$

Solution:

  1. $E, F$ and $G$ are not resonance structures because movement of hydrogen between $E$ and $F$ are involved.

$E, F$ and $E, G$ are tautomers in which $E$ is keto form and both $F$ and $G$ are enol form of the same $E$.

$F$ and $G$ are geometrical isomers.

$F$ and $G$ are distereomers as they are stereo isomers but not related by mirror image relationship.