Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Cis trans isomerism?
I’m slightly confused about the rules
Should there be at least 1 identical group on both carbons and are these the ones I’m comparing ?
For example the picture below
Is this molecule cis or trans ? and why ?
P.s, I don’t wanna know if it’s E or Z, just cis or trans and why please
2 Answers
- hcbiochemLv 71 year ago
As Trevor H said, this compound is cis.
You don't HAVE to have identical groups on both sides of the double bond. For example, if the -CH3 on the right carbon of the double bond was replaced by a -CH2CH3 group, you could still describe the -CH3 and the -C2H5 as being cis to each other.
- Trevor HLv 71 year ago
Cis - look at the double bond = . The two CH3 groups in the C=C carbons are on the same side .
If you take the extreme left C carbon - and swap the H and CH3 - then you have trans - the two CH3 groups ae on different sides of the double bond.
