Hello!
I have this exercise in which I have to tell if this is an optical or a geometric isomer.
![](https://i10.servimg.com/u/f10/13/38/65/79/ohboy10.png)
The answer is "geometric", but, to be honest, they are the same substance to me. What is the difference? The only thing that changes is the way it is drawn.
Can you guys please give me a hint here?