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    (Original post by Waki)
    What about the atom economy question?
    I got 60.7% or something along those lines.

    EDIT: Crap I think I did it wrong :/ is it meant to be the Mr of all reactants / Mr of product *100?
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    (Original post by tigerz)
    Awesome! looks like we all agree :P Good good..what else was there :/

    Oh shape of N2O is linear? 2 regions of electron density?
    Oxidation state was -3, became +3, increases in ox state= oxidation...

    I didn't get the isomer at all, haha drew some random shiz
    Yup got all that, and I also failed with the isomer lool
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    (Original post by Waki)
    What about the atom economy question?
    100% if you read the question
    "all the products are useful"
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    (Original post by Waki)
    What about the atom economy question?
    I think it was 100% because apparently the question said all the products were useful.


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    (Original post by steviep14)
    100% if you read the question
    "all the products are useful"
    **** i thought it might have been that but i wasn't sure if they were referrring to just the chlorine. Plus they gave you one line which i thought was strange for a calculation...
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    (Original post by abzy1234)
    Yup got all that, and I also failed with the isomer lool
    Haha awesome, we;ve done very similar!

    Yeah I put 100% atom economy because it was electrolysis! Hmm trying to remember more bits.. I wish there was a copy of the paper
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    (Original post by juniorx)
    **** i thought it might have been that but i wasn't sure if they were referrring to just the chlorine
    Yeah I'm fairly sure it just asked for chlorine :confused:

    EDIT: Love how we got negged for contributing.
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    GUYS look at question 1B look at what they did did this question this morning and was delighted to find basically the exact same question lmao.

    http://www.ocr.org.uk/Images/61539-q...-resources.pdf
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    What do you guys think grade boundaries will be like for an A?
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    (Original post by tigerz)
    Haha awesome, we;ve done very similar!

    Yeah I put 100% atom economy because it was electrolysis! Hmm trying to remember more bits.. I wish there was a copy of the paper
    Awesome!

    Umm I think everyone's covered everything tbh; there were some simple replica questions, like the NaCl structure, C-F vs C-Cl bond, e=hv calculations... I think that's all tbh!

    And I'm afraid there's no real chance of anyone getting hold of the paper due to strict copyright laws. Unless there's a teacher out there lurking on this forum, who will kindly upload it for us
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    For the "why is breathing apparatus needed" one,
    you had to say "chlorine is a toxic gas" for 2 marks..
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    (Original post by juniorx)
    but wasn't it talking about the central nitrogen atom?
    Hold up, was the question for N2O or NO2 :eek:
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    (Original post by MintCrepz)
    GUYS look at question 1B look at what they did did this question this morning and was delighted to find basically the exact same question lmao.

    http://www.ocr.org.uk/Images/61539-q...-resources.pdf
    IKR, the e=hv question was also a repeat this paper was quite similar actually as it also had the membrane cell...

    More greener as it had less c02 and used the least voltage?
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    (Original post by booooomblastruin)
    Hold up, was the question for N2O or NO2 :eek:
    i thought it was n2o
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    (Original post by Tejmasta)
    What do you guys think grade boundaries will be like for an A?
    I think around 72 to 80.

    The pattern has been so far since June 2009:

    69,74,72,68,70,71,80,72
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    What did people say for the bonding question!? I said hydrogen bonds between molecules of propan-1ol and pentene had Id-Id and so on..


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    (Original post by tigerz)
    IKR, the e=hv question was also a repeat this paper was quite similar actually as it also had the membrane cell...

    More greener as it had less c02 and used the least voltage?
    Yeah yeah sounds like we got similar answers !
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    (Original post by steviep14)
    For the "why is breathing apparatus needed" one,
    you had to say "chlorine is a toxic gas" for 2 marks..
    ARGH! Knew I'd forgotten something that's 5 marks I know I've lost so far!

    Ah well the boundary for an A tends to be 68~78 so we have room for error.

    EDIT: Does anybody remember most of the questions? A lot of the ones in those exam are just repeats from past papers so we might be able to get a fraction of a mark scheme together from the past MS.
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    (Original post by tigerz)
    IKR, the e=hv question was also a repeat this paper was quite similar actually as it also had the membrane cell...

    More greener as it had less c02 and used the least voltage?
    i said less co2 and the total enery was lower?
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    For the wire question can you say

    Foes not conduct electrical charge, so user does not get an electric shock

    ?
 
 
 
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