Free radical substitution reactions

'I'm in the middle of a chain reaction!' Oh dear, no singing!!! OK this video does show you how these reactive radicals can be used to make haloalkanes and the problems of them with regards to CFCs and the ozone. Find out how to write these mechanisms using initiation, propagation and termination steps.

[@ahmedal-saied211]

These videos are really good ! I will definitely be spreading this over my entire college!

[@AlleryChemistry]

Thanks very much!

[@STICKY_]

I understand it I just don't know how to answer exam questions on it ughhhh

[@meghakavithasiva5626]

Saved my life! Thank You!!!!!!! I spent ages trying to understand it and you did it in 12 minutes!

[@deloresyan1363]

this is super cool, I can totally understand it now

[@rahihasan3670]

This is really so helpful thanks mate

[@alexiaplacinta5468]

Your videos are very helpful

[@faizallimalia4986]

May God bless you Sir.

[@farahhussain8484]

This is so helpful!! :)

[@AlleryChemistry]

+Farah Hussain Good good. Please spread the word about this video ☺

[@LaurasLabyrinth]

thank you, this made it a lot easier to understand!! You're a star :)

[@SidPlayzclashofclansNmc]

You’re my dad

[@Mario-wp7jq]

Yea fam

[@y.mstizzy9179]

Great video

[@reptilected4097]

thank you, very helpful!

[@fzahrab1]

Great video!!! :)

[@AlleryChemistry]

Grapesand Snapple Thanks very much! Please share these videos to people you know who you think will also benefit too. If you are on twitter follow me @allerytutors to hear about what videos are being made before everyone else.

[@geotheomusic761]

THANK YOU!!!

[@freezerhythmsnevents5891]

Sir I have a doubt plz explain free radical mechanism of sulphonation

[@lovead5418]

thank you for the video!

[@AlleryChemistry]

Welcome!

[@Andy-cx3iz]

hey i have a question, when you do the second propagation reaction how do you which is the second reactant you should use other than the one that has a radical rom the first propagation reaction product? btw great video!

[@mejiidowu7659]

the second reactant is always the diatomic atom

[@salmanqureshi3361]

yes! finally zoomed in!

[@user-or1tp5bo5q]

So helpfulll

[@tahir4230]

thank you

[@roshnyabraham7941]

Does the dot have to be on the C or near it 6:14

[@nomsy9279]

Cool video 👍🏻

[@AlleryChemistry]

+Nneoma Uche Thanks very much! Please share this vid with others who may find it useful too! 😄

[@ali-bb7so]

How come in Cl. + O3 > clo. + o2 the radical group doesn't cross over giving the o2 as a radical

[@JBCJackson]

+ali _r Thats what i was wondering

[@AlleryChemistry]

+JBC Jackson +ali _r It is due to the structure of ozone. It has a single and double bond and has a positive and negative charge too. When bond fission occurs it is more energetically stable to form O2 and O radical which then bonds with Cl to form ClO radical. The explanation is simplified a lot as the actual reasoning is very complex and beyond A Level.

[@ali-bb7so]

+Allery Chemistry thanks very much your vids are helpful

[@Michelle-hc5dp]

@@AlleryChemistry when the O radical bonds to Cl wouldn’t it no longer have a radical because it shares an electron with Cl?

[@Michelle-hc5dp]

@@AlleryChemistry does this mean that when reactions happen the most likely outcome is the one that’s most stable like with markownikoff’s rule?

[@ace1879]

What if they ask to represent without curly half headed arrows, they asked this in the October 2016 IAL Edexcel exam

[@AlleryChemistry]

Yes you just set it up showing equations for the initiation, propagation and termination steps.

[@malk5961]

YAAAAAAAAAAAAAAAAAAS