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    I'm pretty sure I dropped about 20 marks just making stupid stupid mistakes. Ugh.
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    (Original post by Ali_Ludley)
    I thought it was the 'propellants in aerosols' and not just the 'aerosols' themselves. I'm not sure if it matters though...
    The propellants in aerosols can be CFCs. So that would make CFCs used AS propellants in aerosols. I think. It should be fine..
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    (Original post by Tejmasta)
    What were the large scale uses of chlorine?
    I wrote disinfectant and for purifying drinking water? or something like that
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    (Original post by super121)
    Yea, I agree. It also depends on how smart the cohort is. If they are smart boundaries go up regardless on how easy/hard the paper is (like in June 2012 )
    thats a really good point, I didn't think of that
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    (Original post by gregzzzter)
    I put flame retardants for the other use of CFCs is that right? and what does CFC actually stand for?
    Chlorofluorocarbons. and I wrote blowing agents for that one, it was quite literally the only thing on my mind because my friend and I made this inappropriate joke in the morning around it haha
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    (Original post by Tejmasta)
    What were the large scale uses of chlorine?
    i wrote PVC and water treatment
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    would saying propellants for the CFC questions be alright guys?
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    (Original post by nukethemaly)
    I wrote disinfectant and for purifying drinking water? or something like that
    Exactly what I wrote :P

    (Original post by nukethemaly)
    Chlorofluorocarbons. and I wrote blowing agents for that one, it was quite literally the only thing on my mind because my friend and I made this inappropriate joke in the morning around it haha
    Haha ditto
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    (Original post by nukethemaly)
    Chlorofluorocarbons. and I wrote blowing agents for that one, it was quite literally the only thing on my mind because my friend and I made this inappropriate joke in the morning around it haha
    hahahaha, damn that would of been a good way of remembering it. Nice I put chlorofluorocarbons, thought it was a hard paper though. Hopefully 75/80 for an A
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    (Original post by nukethemaly)
    I wrote disinfectant and for purifying drinking water? or something like that
    (Original post by tigerz)
    Exactly what I wrote :P



    Haha ditto
    I thought of the word 'purify' but its not actually purifying the liquid, in fact it is making it more impure by adding chlorine. It kills bacteria but that isn't the same as purifying. I'm not sure what the MS will be like on this though.
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    (Original post by gregzzzter)
    I put flame retardants for the other use of CFCs is that right? and what does CFC actually stand for?
    I think flame retardants is exclusive to bromine
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    I wrote Anhydrous Potassium Sulphate....Is that acceptable? Knew i should of put Sodium -_-'
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    has anyone made an unofficial markscheme???
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    Is there any chance of an unofficial mark scheme being posted? There was one for Core 2 maths that I did two week ago, don't know if it's the same for Chemistry.:rolleyes:
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    (Original post by booooomblastruin)
    I think flame retardants is exclusive to bromine
    Chlorofluorocarbon
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    (Original post by gregzzzter)
    Is there any chance of an unofficial mark scheme being posted? There was one for Core 2 maths that I did two week ago, don't know if it's the same for Chemistry.:rolleyes:
    OCR papers are really hard to get hold of for some reason :/
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    do you have to say anhydrous to get the mark

    I just said Magnesium Sulfate which i know is a drying agent =/
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    (Original post by JammyGit07)
    I wrote Anhydrous Potassium Sulphate....Is that acceptable? Knew is should of put Sodium -_-'
    Exactly the same perfect
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    (Original post by Ali_Ludley)
    I thought of the word 'purify' but its not actually purifying the liquid, in fact it is making it more impure by adding chlorine. It kills bacteria but that isn't the same as purifying. I'm not sure what the MS will be like on this though.
    True that, I totally forgot about PVC etc I think i'll get 1 mark for that bit
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    Did anyone get 1,1,5- trimethyl hept-4-ene for the name of the molecule by any chance. It seems right to me when i work it out, but everyone seems to be writing other things...
 
 
 
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