AQA CHEM4 - 13th June 2012

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haha thats true, it doesn't work well for me because I resort to: "errr, I know this crap give me a harder question"-I actually didnt know the answer lol. If you're not like me, it'll work well! :tongue:

I dnt kno, maybe il feel like that after I've revised thoroughly. I haven't done any past papers yet so Im not sure how to phrase answers to get all the marks I guess.

Oh I'm doing edexcel chem btw, although I'm using the aqa for question practise

(edited 12 years ago)

Reply 121

MuffinMonster

Original post by Bright.Inspiration.

June 10

It wasn't super hard or anything... I just made lots of bad mistakes :/
I forgot stuff like how AlCl3 is an electophile, the definition of a racemate, etc

Isn't AlCl3 a catalyst for some acylation reaction? :tongue:

Reply 122

Bright.Inspiration.

Original post by MuffinMonster

Isn't AlCl3 a catalyst for some acylation reaction? :tongue:

Oh god I don't know fml XD

Reply 123

Glacier

Original post by Bright.Inspiration.

June 10

It wasn't super hard or anything... I just made lots of bad mistakes :/
I forgot stuff like how AlCl3 is an electophile, the definition of a racemate, etc

AlCl₃ isn't an electrophile, it's the catalyst that is used to generate the electrophile for electrophilic substitution reactions involving benzene. E.g. AlCl₃ + CH₃COCl

\rightarrow

AlCl₄^- + CH₃CO⁺ (the electrophile)
The AlCl₃ removes a chlorine atom to form a positively charged electrophile, and the catalyst is regenerated by the H⁺ that leaves the benzene ring. So, AlCl₄^- + H⁺

\rightarrow

AlCl₃ + HCl

Reply 124

Bright.Inspiration.

Original post by Glacier

AlCl₃ isn't an electrophile, it's the catalyst that is used to generate the electrophile for electrophilic substitution reactions involving benzene. E.g. AlCl₃ + CH₃COCl

\rightarrow

\rightarrow

AlCl₃ + HCl

Oh,
Thank you for correcting me :smile:

Reply 125

Doctor.

CHEM4 isn't fun :frown:

Got 2/3 more sections worth of questions to do! :angry:

Reply 126

thegodofgod

Original post by Doctor.

CHEM4 isn't fun :frown:

Got 2/3 more sections worth of questions to do! :angry:

CHEM4's a lot of fun :dance:

Much more fun than CHEM5 :sad:

Reply 127

Doctor.

Original post by thegodofgod

CHEM4's a lot of fun :dance:

Much more fun than CHEM5 :sad:

Not true! CHEM5 is just learn everything lol. CHEM4 just mind****s' you when you hit NMR!

Reply 128

thegodofgod

Original post by Doctor.

Not true! CHEM5 is just learn everything lol. CHEM4 just mind****s' you when you hit NMR!

But you have to admit Organic Synthesis is :love:

That's why I hate CHEM5 - too much learning/memorising - I'd rather understand why something happens the way it does, which makes me learn a lot better :colondollar:

Reply 129

Doctor.

Original post by thegodofgod

But you have to admit Organic Synthesis is :love:

That's why I hate CHEM5 - too much learning/memorising - I'd rather understand why something happens the way it does, which makes me learn a lot better :colondollar:

Organic Synthesis in the bane of my life...not really but it's difficult lol. Then again when I do understand what is going on or it's obvious what the route is it's amazing :love:

. I agree about the learning better though :h:

CHEM4 is nice when you understand it! :biggrin:

Reply 130

itspossible

Casually sitting 63.3% of my Chemistry A level in summer... knew I should have revised last year!!

Reply 131

Doctor.

Original post by itspossible

Casually sitting 63.3% of my Chemistry A level in summer... knew I should have revised last year!!

I did this is January...actually it was 75% lol :s-smilie:

. But you get the point :tongue:

. Trust me it's possible :h:

Reply 132

skylight17

I have made all my notes - just wanted to ask if anyone could give me any tips on the best way to revise the material. I'm finding it a lot harder than when I revised for Chem 5 in January, as I could pretty much just learn the stuff where as this is more application based...

Any pointers would be much appreciated! :biggrin:

Reply 133

skylight17

Original post by Doctor.

I did this is January...actually it was 75% lol :s-smilie:

. But you get the point :tongue:

. Trust me it's possible :h:

You seem to know your stuff! :wink:

- see above

Reply 134

itspossible

Original post by Doctor.

I did this is January...actually it was 75% lol :s-smilie:

. But you get the point :tongue:

. Trust me it's possible :h:

Oh lol I saw on AQA its 20% for each A2, and then 23.3% for CHEM2... might not have read it right though :wink:

Reply 135

itspossible

Original post by skylight17

http://www.thestudentroom.co.uk/showthread.php?t=1969799

This is what my chemistry teacher told me to do!!! :P

Reply 136

Mero8

Can anyone send me anything for Organic Synthesis?! :'(

Reply 137

skylight17

Original post by itspossible

http://www.thestudentroom.co.uk/showthread.php?t=1969799

This is what my chemistry teacher told me to do!!! :P

So basically I need to do a F**K loads of questions! sounds thrilling :rolleyes:

Reply 138

itspossible

Original post by skylight17

So basically I need to do a F**K loads of questions! sounds thrilling :rolleyes:

Indeed :P I find it the best way to learn :wink:

by getting it all wrong!!

Reply 139

Doctor.

Original post by skylight17

To be honest, I think there is a way to get a good mark in each module.

CHEM1: It's tiny so revising the material isn't hard. Just master if they try to be a little...off topic (January 2012 paper lol).

CHEM2: Learn + Past Papers + make sure you can do all sorts of calculations! there are loads in CHEM2.

CHEM4: Not a clue, I am doing it right now!

CHEM5: STICK TO THE SPEC LIKE GLUE. The topics are so...synoptic. Just make sure you don't go learning random off spec stuff because it will not come up. The specification actually tells you exactly what will and will not be on the exam!

That's about it I guess :colondollar:

Hope it helps :h: