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    (Original post by Talha9)
    How was Paper 1C ? btw unofficial mark scheme of Paper 1C is released
    I found it OK, most of it was doable but I am slowly starting to realise all the mistakes I made especially after looking at the unofficial markscheme. Thanks for telling me about it. Have you done paper 1CR, if you did how was it?
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    (Original post by mirah01)
    I wrote the same thing, that she didn't start the timer on time
    For anomalous result i wrote that temperatures were different :/ means were not controlled !
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    (Original post by Talha9)
    I have been always good in Chem, once scored 96 too in school exam. But i did alot of silly mistakes and and paper was kinda tricky and experiments questions were really difficult. Not expecting good grade if i dont do good in Paper 2CR
    I really struggle with calculations and I am dreading paper 2C. I definitely preferred Bio.
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    Some 1 remember the question regarding effervescence ?
    Why in Solution 1 why not in Solution 2 ?

    Which 2 reactions are REDOX ?

    Can some 1 answer these question for me ?
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    Does anyone have an unofficial mark scheme?

    The exam was pretty easy. I just screwed up. :3
    What did you guys write in the solubility thingy?
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    (Original post by Tahsin Mamun)
    Does anyone have an unofficial mark scheme?

    The exam was pretty easy. I just screwed up. :3
    What did you guys write in the solubility thingy?
    Can you please tell me the question regarding effervescence ?
    Why in Solution 1 why not in Solution 2 ?

    Which 2 reactions are REDOX ?
    Plzz ? I will be very thankful to you
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    and guys can someone predict from where most questions will come in 2CR
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    (Original post by Talha9)
    Can you please tell me the question regarding effervescence ?
    Why in Solution 1 why not in Solution 2 ?

    Which 2 reactions are REDOX ?
    Plzz ? I will be very thankful to you
    I wrote Reaction 4 and 6 are redox ( not sure)
    and about effervescence I wrote that Hcl dissolved in water has free ions,whereas methylbenzene doesn't. So there is an ionic interaction and a gas forms
    Again not sure
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    (Original post by Tahsin Mamun)
    I wrote Reaction 4 and 6 are redox ( not sure)
    and about effervescence I wrote that Hcl dissolved in water has free ions,whereas methylbenzene doesn't. So there is an ionic interaction and a gas forms
    Again not sure
    Even i wrote reaction 4 and 6

    and i pretty much screwed in the effervescence question :/ Pretty sure gonna score 0 or 1 in that answer out of -_-
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    What did you answer in the solubility question??
    and how was the enthalpy change graph
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    (Original post by Tahsin Mamun)
    What did you answer in the solubility question??
    and how was the enthalpy change graph
    1-no gas comes out as there is enough solution for the gas to dissolve in.
    2- it went below the reactant line
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    (Original post by Tahsin Mamun)
    What did you answer in the solubility question??
    and how was the enthalpy change graph
    Solubility question was easy just messed up with ( Ethene section ) in solubility.

    And in Enthalpy change i didn't draw the product .. #rip
    It was normal curved exothermic graph. but i forgot to draw the product line -_- :/
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    (Original post by Talha9)
    Can you please tell me the question regarding effervescence ?
    Why in Solution 1 why not in Solution 2 ?

    Which 2 reactions are REDOX ?
    Plzz ? I will be very thankful to you
    Don't remember the REDOX question but
    Effervescence was in solution one because the hydrogen and chloride ions dissociate in the water to form hydrochloric acid. Hence the reaction of metal. It doesn't dissociate in methylbenzene though
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    What was the answer of Chromatography ( tick 3 box out of 5 ) ? Which 3 boxes we had to tick ?
    Can someone also tell me what was the last answer for Chromatography question ?
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    (Original post by Talha9)
    What was the answer of Chromatography ( tick 3 box out of 5 ) ? Which 3 boxes we had to tick ?
    Can someone also tell me what was the last answer for Chromatography question ?
    I ticked the 1 2 5 th boxes. And i did 1.3/6 for the last one
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    (Original post by Talha9)
    What was the answer of Chromatography ( tick 3 box out of 5 ) ? Which 3 boxes we had to tick ?
    Can someone also tell me what was the last answer for Chromatography question ?
    I ticked the 1 3 5 th boxes. And i did 1.3/6 for the last one
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    that ques worth3 only i think
    (Original post by Talha9)
    Even i wrote reaction 4 and 6

    and i pretty much screwed in the effervescence question :/ Pretty sure gonna score 0 or 1 in that answer out of 4 -_-
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    I wrote that reaction 3 and 4 were redox reactions... How did everyone get 4 and 6
    • Thread Starter
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    (Original post by nusquam)
    I wrote that reaction 3 and 4 were redox reactions... How did everyone get 4 and 6
    Yeah same, I wrote 3 and 4. I showed it by showing the ionic equations...
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    (Original post by nusquam)
    I wrote that reaction 3 and 4 were redox reactions... How did everyone get 4 and 6
    (Original post by Prudencejh)
    Yeah same, I wrote 3 and 4. I showed it by showing the ionic equations...
    I did the same as well.
 
 
 
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