Wish there was an easy way for me to get the message out. Am constantly tweeting about the channel but only seem to be noticed by a very small number of new students. Thank you by the way!
I found this a really useful tool to refresh my memory at times throughout the year and just before my exams now I get full marks on all three of the mechanisms every time. Cheers, it's appreciated
Why does the cl radical take the H and not anything else in p1? Is it because h has one outer electron to bind with the unpaired electron In the cl outer shell?
i have to admit a level chemistry has to be one of the hardest subjects to study, i dropped out of chemistry and did physics which i got a B at the end
@machemguy thank you for the video it is very helpful. Please could you explain why at step P2 does the methyl react with chlorine. Could it not react with more methane instead? Thanks!
In the 2nd propagation step, it is always an alkyl radical reacting with a halogen 🙂 The alkyl radical is an intermediate (something reactive that is formed in one step and used up in a subsequent step), hope that helps
hey sir i hope you are doing well. thanks for the effort you put into the videos. i have a questions if you don't mind. could you summarise the problems with radical substituion if possible ? thanks
@@daisytucker4498 The H of a water molecule can interact with the O of a C=O. However, the H and the O of a water molecule can interact with a hydroxyl group. In other words, OH groups are more significant
Lucia Hughes Yes as well as substitution can occur anywhere on the carbon chain (if it’s got >2 C atoms). Basically if there’s excess halogen present there will be a large amount of halogen radicals present in the reaction mixture. These can strip out multiple H atoms (via a pair of propagation steps for each one). Hope that makes sense. Due to this, it’s very difficult to only make the desired product
Dariel Diaz there are different ways to represent the mechanism depending on the kind of reaction, electrophilic and nucleophilic attack uses the movement of electron pair model. Whereas with radicals there are no electron pairs moving, they are singular elections so they have this model instead. Only correct a teacher when your positive you're right. In this case you are not.
