Question

Which of the following statement is false about the following compounds ?

• A. (I) and (III) are identical
• B. (I) and (III) are geometrical diastereomers
• C. (I) and (II) are structural isomers.
• D. (II) and (III) are structural isomers.

Answer 1

Answer: (A)

(I) and (III) are identical

Answer 2

I and II have different positions of $\pi$ -bond, these are positional isomers. Similarly II and III are also positional isomers.

I and III are geometrical isomers.