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  1. A

    Biology Paper 1

    In any case Virus is obviously wrong because they are not cellular.
  2. A

    Physics Threshold

    There is only one case of CIE releasing thresholds of O levels. It was for Pakistan Studies in 2004. See for yourself: http://papers.xtremepapers.com/CIE/Cambridge International O Level/Pakistan Studies (2059)/2059_s04_ms.pdf They are on page 2.
  3. A

    does anybody here do human and social biology..

    I've done it before
  4. A

    Environmental Management candidates in here !!!

    I never attempted them but it might be helpful if you have enough time. Past Papers are much more important.
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    Physics Threshold

    This is in my opinion a wrong idea as CIE is an international examination board. It makes no sense for them to assess candidates giving the same papers(IGCSE and O Levels Islamiyat have identical papers) with such different standards. It would be unfair for the candidates in O level to be marked...
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    Physics P1 and P2 Discussions

    If it was, then what would be the right answer of that MCQ?
  7. A

    Physics P1 and P2 Discussions

    Wouldn't a broken filament effectively break the circuit causing both readings to decrease?
  8. A

    Physics P1 and P2 Discussions

    It was mentioned that he dove from a large height
  9. A

    Maths D 22

    Any valid method of establishing congruency is credited. I did RHS which is also right.
  10. A

    Physics P1 and P2 Discussions

    I am only confused about the answer to the MCQ about the diver. I did GPE to KE to Heat energy.
  11. A

    Chemistry P1 and P2 today

    The scoring is done as follows: ATP marks are scaled out of 30 so your 58 will be 29/30. Your total marks then add up to 131/145 which is about 90%. CIE keeps Science thresholds below 90% generally so you will have a good chance of an A*
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    Chemistry P1 and P2 today

    I attempted this question and my answer was .4 g I think. From the graph the volume of CO2 evolved was 96 cm. So the moles of CO2 would be 96/24000=.004 moles In the next part as the molar ratio of CaCO3 to CO2 is according to this equation CaCO3 + 2HCl=CaCl2 + H2O + CO2 1:1 so 0.004 * CaCO3...
  13. A

    Chemistry P1 and P2 today

    One direction.
  14. A

    Chemistry P1 and P2 today

    They do combust but in this question it was not the right answer.
  15. A

    Chemistry P1 and P2 today

    1 distillation 2 Equal proportions 3 Zn +Cu2+ one 5 3 and 4 (coloured sulfates and multiple oxides) 6 2(all hav high melting points) and 3 which i don't remember. 8 Fertilisers 9 Transfers 1 electron 10 HX The rest I don't remember
  16. A

    Chemistry P1 and P2 today

    The MCQ question number 30 I think about methanol formation. Its answer was the forward reaction is exothermic, right?
  17. A

    Chemistry P1 and P2 today

    That was H4NO3V
  18. A

    Chemistry P1 and P2 today

    I remember my answer to the tablet question being something like 0.004.
  19. A

    Chemistry P1 and P2 today

    My MCQs went well although I have made some very silly mistakes in P2.
  20. A

    Chemistry P1 and P2 today

    I just checked. It is ammonia :(
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