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OCR Chemistry Salters B F332 10th June 2016 (Old specification)

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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:!
What did everyone write about the hydrogen bonding density Q?
Reply 82
Avatar for smm90
smm90
1
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
for the catalysis it was radical subsitution right?
It referenced the gaseous state in the question so I put homogeneous catalysis.
That paper just knocked my confidence all the wayyy. :frown:
Reply 86
Avatar for 1222fdf
1222fdf
Very very solid paper , nearly none of those old question were brought from the previous last 8 years.
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?
Reply 88
Avatar for SohaXO
SohaXO
3
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
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). 😢
what did you put about infradred spectrum and how co2 can be identified?
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?
https://www.google.co.uk/search?q=but-2+ene&rlz=1C1GKLA_enGB663GB663&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjv94S_753NAhUHQBoKHTozCEoQ_AUICCgB&biw=1600&bih=775#imgrc=wlcwoxBQXqy9CM%3A

This was isomer question,
Original post by jadeastbury
I put denitrifying bacteria in soil


what i said makes sense right?
Reply 94
Avatar for SohaXO
SohaXO
3
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
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.
Can someone do an unofficial mark scheme, taht would really help. Thank you
Reply 97
Avatar for Kaz_96
Kaz_96
8
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?
I did that too
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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