OCR A level Chemistry Paper 1 Transition elements desperate help needed !!!!!

I also have this exam and I can't help you either I am so sorry!! Good luck with the exam though, I suck at transition elements too (so then why am I going over Year 12 equilibrium)??

I also find myself going over a lot of year 12 stuff too. I think its because we find it much easier and we neglect the harder year 13 content. Good luck to you too!

Check the spec!!

I hate the Year 13 stuff with a passion. also I don't understand organic reaction mechanisms :/ Thank you, I'm gonna need it!

Agreed, this is the your holy bible for Chemistry, follow it and it only, what you have to learn for transition metals isn't actually that much either, I'd say the hardest part is probably learning all the colours for the different oxidation states, also note one of the transition metals (can't remember the name) isn't actually a transition metal because it doesn't form an ion with an incomplete d-sub shell!

What don't you understand about the mechanisms? I'll try to help you if you want? I hope I can lol.

Agreed, this is the your holy bible for Chemistry, follow it and it only, what you have to learn for transition metals isn't actually that much either, I'd say the hardest part is probably learning all the colours for the different oxidation states, also note one of the transition metals (can't remember the name) isn't actually a transition metal because it doesn't form an ion with an incomplete d-sub shell!

I understand what's going on, I just can't draw them and often get 0 marks on questions about them. Also I can't remember synthetic routes://

On the spec, it says we only need to know the ligand substitution reactions of copper and chromium, but my textbook says more and I just dida past paper and one of the questions was asking me about Cobalt?

I understand what's going on, I just can't draw them and often get 0 marks on questions about them. Also I can't remember synthetic routes://

On the spec, it says we only need to know the ligand substitution reactions of copper and chromium, but my textbook says more and I just dida past paper and one of the questions was asking me about Cobalt?

On the spec, it says we only need to know the ligand substitution reactions of copper and chromium, but my textbook says more and I just dida past paper and one of the questions was asking me about Cobalt?

Do you have like a flowchart with all of the synthetic routes? If so learn that off by heart or stick it on your bedroom wall. Once you have it learnt then you can pretty much answer any 6 mark organic question they decide to throw at us. If you are struggling to draw them out, always do it in displayed formula, I find that always helps me because I cant stand skeletal and structural.

The best way imo to practice synthetic routes is to do practice questions on them AFTER you've the read the book on it.
If you're having trouble drawing the reaction mechanisms, always remember the arrows show the movement of electrons, so let's say nucleophilic addition is occurring (e.g a Br ion is moving to a carbo-cation) you have to draw a curly arrow going from the electrons (or the negative sign) directly to the positive sign of the carbon atom or the carbon atom itself.
Now let's also say you're trying to form and intermediate for benzene mechanism, this is where the drawing does get a bit tricky, you have to draw the curly arrow going from the specific area in the ring to which the electrophile is going to bond, and then ring will be positively charged temporarily

There's one provided by ocr, it is very useful and the same pdf contains all the routes you need to know (including aromatic) and you can even annotate your own, I'll try to find the link for it.

oh yea I did that question what paper was it again??

It was practice paper set 2, I thought the multiple choice section was so easy, the second half wasn't bad but I just made so many stupid mistakes.