Name each aldehyde or ketone. a.

Video transcript

Welcome back, everyone determine the name of the given key. So we are given four answer choices to this problem. A three Pennon B, four Hexagon, C three, Hexagon and D two Hepton. Now the answer choices are really useful for us because we can see that all those names and with and that's true, right? Because the structure is a key zone. So our goal will be to use a suffix on for our parent. Now to identify the parent, we simply want to count the number of carbon atoms in the longest continuous carbon chain. So we have 123456 carbon atoms. The prefix representing sex in chemistry is hex. So that would be hexagon. Now, we can exclude options A and D, right? Because those are hep anone and pone, we are dealing with hexagon. So it's either B or C that be our correct answer. So let's identify which one. Now, now that we know it's hexagon, we also have to make sure that we identify where the carbel group is because the car bal group with two alkyl groups bonded to, it essentially represents a ket zone, right? And that car Bono group currently is at carbon number four. But the problem is that we have to minimize the lo of the carbo group. We have identified the longest continuous chain from left to right. But what if we enumerate it from right to left? And instead, instead of having the carbonel group starting at carbon four, we have now managed to get it at carbon number three, which gives us a lower LO count. So we always want to make sure that we enumerate our chain in a way such that we minimize the Logan of the car bono. Therefore, hexagon must be converted into three hexagon indicating that the carbon group is bonded to carbon number three. And as a result, we can tell that the correct answer to this problem corresponds to choice C three. Hexagon is the name of the given ketone. Thank you for watching.