Hey there! Sign in to join this conversationNew here? Join for free

OCR Chemistry F324(RINGS..)June 2010 past paper?Help!!!!!!! Watch

    Offline

    0
    ReputationRep:
    can someone discuss this paper with me on PM or something tonight??
    Offline

    0
    ReputationRep:
    Hi, I know my way round some graphics programmes / graphics file types so I have used / cleaned up the ayostunner JPGs to produce the attached PDF. Should be more convenient to use/print. Hope it helps.
    Regards
    gjdgjd
    (PS when scanning 1 bit B/W images it is best not to scan and save as 24 bit lossy JPGs, the trick is to scan at higher dpi (300 or preferably 600) at 1 bit and save as lossless TIFs (G4 compression is best).
    Attached Images
  1. File Type: pdf00.pdf (463.2 KB, 993 views)
    Offline

    0
    ReputationRep:
    Hi Guys

    ive managed to get the mark scheme for june 2010 if any one needs it..
    Attached Images
  2. File Type: pdf2010 F324 June MS.pdf (82.0 KB, 983 views)
    Offline

    0
    ReputationRep:
    (Original post by gjdgjd)
    Hi, I know my way round some graphics programmes / graphics file types so I have used / cleaned up the ayostunner JPGs to produce the attached PDF. Should be more convenient to use/print. Hope it helps.
    Regards
    gjdgjd
    (PS when scanning 1 bit B/W images it is best not to scan and save as 24 bit lossy JPGs, the trick is to scan at higher dpi (300 or preferably 600) at 1 bit and save as lossless TIFs (G4 compression is best).
    its the paper i ddnt have...lol
    thanks for that
    Offline

    0
    ReputationRep:
    thank you very much mugiwarano

    the mark scheme says ketone 2 in question 3d ii) has 4 environments... can anyone explain why? i thought the answer was ketone 1.
    thanks in advance
    Offline

    0
    ReputationRep:
    (Original post by Phee86)
    BUT 2-methyl-propanal has 4 carbon atoms and the aldehyde in the question has
    C5H10O NOT C4?????
    PLease explain this
    Sorry yeah this is true.

    Try 3-methyl-butanal ?
    Offline

    0
    ReputationRep:
    MS
    Attached Images
  3. File Type: pdfJune_2010_Mark_Scheme.pdf (82.0 KB, 313 views)
    Offline

    0
    ReputationRep:
    (Original post by kkAQA)
    MS
    Thank you
    Offline

    0
    ReputationRep:
    thanks a lot u guys, really helps, needed that
    Offline

    0
    ReputationRep:
    Ahrh this unit is the worst - dreading the exam on the 26th!!
    Offline

    0
    ReputationRep:
    Hey, does anyone know what the grade boundaries would be for this exam. I thought it was hard, but ended up doing OK (although my teacher has given us Q1 before so I knew all of that), because I think it was easier than Jan 10, but I can't see it being 48 for an A. Thanks... and back to revision.
    Offline

    1
    ReputationRep:
    (Original post by Piandme)
    Hey, doesw anyone know what the grade boundaries would be for this exam. I thought it was hard, nut ended up doing OK ( although my teacher has given us Q1 before so I knew all of that), because I think it was easier than Jan 10, but I can't see it being 48 for an A. Thanks... and back to revision.
    my teacher said it would be about 48 for an A too, but on the OCR website theres a document with all the raw mark and scaled grade boundaries, and for F324 it was 41 for an A

    http://www.ocr.org.uk/download/admin...und_jun_10.pdf
    Offline

    0
    ReputationRep:
    (Original post by wilsea05)
    my teacher said it would be about 48 for an A too, but on the OCR website theres a document with all the raw mark and scaled grade boundaries, and for F324 it was 41 for an A

    http://www.ocr.org.uk/download/admin...und_jun_10.pdf
    Thanks. That means I got an A then. (prays that the garde boundaries will be that low for Jan 11)
    Offline

    0
    ReputationRep:
    could any explain to me, on question 1 b i - the positioning of the NO2 etc are all positioned on the 4th carbon, i put the functional group on the very top carbon, why is this wrong?
    Offline

    1
    ReputationRep:
    (Original post by bagga)
    could any explain to me, on question 1 b i - the positioning of the NO2 etc are all positioned on the 4th carbon, i put the functional group on the very top carbon, why is this wrong?
    It's because you had to work out the positioning of where the NO2 group should be by using the picture they give you of compound D. I think they try and trick you out cos both the first pic of 1.3 - dimethybenzene and compound D have the methyl groups bonded to different carbons on the ring so they look different however they still are named as 1,3 as they are spaced about with one carbon in between them. Sorry if I'm not making much sense lol.
    Offline

    0
    ReputationRep:
    does anyone have a site which has loads of carbon 13, and proton NMR questions. ALL my past say that those questions are removed due to " 3rd party copyright." I really need some pracitce on this, and I kow for a fact it will defiantly come up, it comes up every year.
    Offline

    0
    ReputationRep:
    Good luck with the exam everyone!
    Looking forward to this shizz ;p

    And make sure all you rate the guy who uploaded to mark scheme
    Offline

    2
    ReputationRep:
    (Original post by tallysingh)
    does anyone have a site which has loads of carbon 13, and proton NMR questions. ALL my past say that those questions are removed due to " 3rd party copyright." I really need some pracitce on this, and I kow for a fact it will defiantly come up, it comes up every year.
    I have a booklet with 10 NMR/C13/IR/MS questions, made by my teacher which (I can guarantee) are trillion times harder than the real exam. I'll try scanning them in school before Thursday - but it's not a guarantee since I do not know whether they'll let me!
    Offline

    2
    ReputationRep:
    (Original post by Schoolio93)
    I have a booklet with 10 NMR/C13/IR/MS questions, made by my teacher which (I can guarantee) are trillion times harder than the real exam. I'll try scanning them in school before Thursday - but it's not a guarantee since I do not know whether they'll let me!
    bit pointless seeing as the exam is on wednesday
    Offline

    1
    ReputationRep:
    (Original post by loki276)
    bit pointless seeing as the exam is on wednesday
    LOL oh so bluntly
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    What newspaper do you read/prefer?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.