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Please help me with optically activity of cis trans isomer

Posted: Tue Jan 24, 2023 9:34 pm
by Highwayservant
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167E366A-BE88-4A4A-BF1A-BB3881B8745F.jpeg (149 KiB) Viewed 4130 times
Can someone help me explain why the answer is B? Why is trans isomer with chiral carbon optically active?

Re: Please help me with optically activity of cis trans isomer

Posted: Tue Jan 24, 2023 10:41 pm
by ChenBeier
B and D have chirality Center in the glycerol unit, because 4 different substituents.

Re: Please help me with optically activity of cis trans isomer

Posted: Tue Jan 24, 2023 10:45 pm
by Highwayservant
Thanks for your reply. But why is the answer B, not D?

Re: Please help me with optically activity of cis trans isomer

Posted: Tue Jan 24, 2023 10:47 pm
by ChenBeier
Its B , because it asked for trans fat. D is the cis fat.

Re: Please help me with optically activity of cis trans isomer

Posted: Tue Jan 24, 2023 11:06 pm
by Highwayservant
Oh yeah, oic, so the ‘trans’ in trans fat is trans isomer. Thanks for letting me know. Haha, never thought of it. Thanks!

Re: Please help me with optically activity of cis trans isomer

Posted: Thu Feb 16, 2023 1:54 am
by rewarddecor
Very nice, I also just learned and understood it today. :D