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    For the stereo isomer one, I put Z-but-2-ene and E-but-2-ene

    I messed up on so much more though, just hope I don't lose anymore than 25 marks D:!
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    What did everyone write about the hydrogen bonding density Q?
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    (Original post by SohaXO)
    0.0375 I think
    I got similar but 0.0784 or something... I think the ratio was 1:2 if the equation was correct and balanced right
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    for the catalysis it was radical subsitution right?
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    It referenced the gaseous state in the question so I put homogeneous catalysis.
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    That paper just knocked my confidence all the wayyy.
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    Very very solid paper , nearly none of those old question were brought from the previous last 8 years.
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    Natural formation of NO : I said No2 is broken down by uv radiation formin gNO.


    Human cause : Nitrogen and oxygenr eacting in a car engine.

    That fine?
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    (Original post by KINGYusuf)
    For the stereo isomer one, I put Z-but-2-ene and E-but-2-ene

    I messed up on so much more though, just hope I don't lose anymore than 25 marks D:!
    I got like e/z-1,2,Methyl something
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    (Original post by SohaXO)
    I got like e/z-1,2,Methyl something
    Yeah, I did that too. I stupidly forgot to name the longest part of the chain (butene). 😢
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    what did you put about infradred spectrum and how co2 can be identified?
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    I put denitrifying bacteria in soil
    (Original post by Kira Yagami)
    Natural formation of NO : I said No2 is broken down by uv radiation formin gNO.


    Human cause : Nitrogen and oxygenr eacting in a car engine.

    That fine?
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    https://www.google.co.uk/search?q=bu...woxBQXqy9CM%3A

    This was isomer question,
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    (Original post by jadeastbury)
    I put denitrifying bacteria in soil
    what i said makes sense right?
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    (Original post by samhorton11)
    Yeah, I did that too. I stupidly forgot to name the longest part of the chain (butene). 😢
    Well still get marks for structure it's fine only like 1 or 2 marks lost
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    I would say an A is 72, Just like last year ( and this paper was slightly harder than last year especially because the AN questions were easier.
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    Can someone do an unofficial mark scheme, taht would really help. Thank you
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    For the stereoisomers, i drew it as c/z isomers with the C=C and the groups attached, is that correct or did they want the full structural formula?
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    I did that too
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    For the polymer one did you talk about I-d -d in ethene

    and P-d p-d in the other one?
 
 
 
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