Question

Which carbon atoms are all in the same plane (co-planar) in this molecule?

Image: img12.imageshack.us/img12/6861/94274481.jpg

a. ) 1, 2, 3, 4
b. ) 1, 3, 4, 5
c. ) 2, 3, 5, 6
d. ) 2, 3, 4, 6
e. ) 3, 4, 5, 6

I strongly think it's (c) by looking at the picture. But I'm not sure how to prove it, if someone were to ask me. I don't logic behind it. If you can please tell me. Thanks

Answer 1

Same response as before. You are not giving the web location properly.

Answer 2

The website does not allow me to post internet addresses for some reason. Really, all you have to do is post the link into the address bar. It works for me.