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  1. P

    Mathematics: Post your doubts here!

    http://www.cie.org.uk/images/157318-november-2012-question-paper-12.pdf Q3(i)
  2. P

    Chemistry: Post your doubts here!

    http://onlineexamhelp.com/wp-content/uploads/2014/08/9701_s14_qp_22.pdf Q2 part iii, iv and v ASAP
  3. P

    Chemistry: Post your doubts here!

    This is what I did in my exams, CaCO3 + 2CH3COOH ----> (CH3COO)2Ca + CO2 + H2O The shell of a chicken’s egg makes up 5% of the mass of an average egg and average mass is 50g moles of egg shell = 5% of 50/100 = 0.025mol moles of ethanoic acid = 50*10^-3 * 2 = 0.1. According to stoichiometry...
  4. P

    Mathematics: Post your doubts here!

    https://in.answers.yahoo.com/question/index?qid=20080719113741AApc5Qw
  5. P

    Mathematics: Post your doubts here!

    Yeah. :)
  6. P

    Mathematics: Post your doubts here!

    In part (ii) u have done a mistake. 2(4)^1.5 = 16 not 8 :)
  7. P

    Mathematics: Post your doubts here!

    f(1) = -1/2 ? A = 7/3 ?
  8. P

    Mathematics: Post your doubts here!

    A small doubt.. According to grade threshold of 2015 To get A we should get at least 62 in paper 1 and 42 in paper 6 So my doubt is In paper 1 I scored 68 and in paper 6 I scored 30. What will be my grade?? C or B or A ?
  9. P

    Chemistry: Post your doubts here!

    Metanoia or anyone else, help me remembering As level inorganic stuffs, that are chapters, Periodicity, Group II and VII and sulfur and nitrogen... Just temme what is importantand what is the trick to remember those stuffs. Thanks.
  10. P

    Chemistry: Post your doubts here!

    2 BP and 1 LP = 3 valance par of electorns..
  11. P

    Chemistry: Post your doubts here!

    NO :/
  12. P

    Chemistry: Post your doubts here!

    2) 68-31 = 37
  13. P

    Chemistry: Post your doubts here!

    Propanone doesnt have H-bonding... It can not be mixed properly with propanal
  14. P

    Chemistry: Post your doubts here!

    Total 3 valance pair.. so 120 degress or slightly lesser than 120 Q9 C=C=O ; O have 2 LP and C have 1 LP
  15. P

    Age limits for CIE As and A levels?

    mail id please? :)
  16. P

    Age limits for CIE As and A levels?

    Any proof please? Thanks.
  17. P

    Age limits for CIE As and A levels?

    asadalam The Sarcastic Retard Awesome12 DarkEclipse MarcoReus
  18. P

    Age limits for CIE As and A levels?

    Hi, I am confused... Some of my friends said there is no age limits and some says there are..
  19. P

    Expected 2015 November papers. DO VOTE.

    Hi all, Its all about physics, chem and math (As and A level) As November 2015 is a last batch of same syllabus since 2009. I wonder will the paper be easy or harder. As June 2015 papers were almost easiest till now will CIE guys make twist and make very tough paper or will let papers be even...
  20. P

    How was S1 Statistics 62?

    explain Q6.
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