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  1. ahmed abdulla

    A level Biology: Post your doubts here!

    which length do we have to measure ... where is the RBC .. it we dont use ruler to measure to u think we use our hands :P
  2. ahmed abdulla

    A level Biology: Post your doubts here!

    just tell me the way plz ... h4rriet
  3. ahmed abdulla

    AS Biology P1 MCQs Preparation Thread

    just tell me the way ...
  4. ahmed abdulla

    PAPER 1 MAY/JUNE 2013 PHYSICS DOUBTS HERE

    cant figure out what u did :eek:
  5. ahmed abdulla

    AS LEVEL BIOLOGY... discuss here AS students only :)

    o its 1 only
  6. ahmed abdulla

    AS LEVEL BIOLOGY... discuss here AS students only :)

  7. ahmed abdulla

    PAPER 1 MAY/JUNE 2013 PHYSICS DOUBTS HERE

    what about the chemistry question please ? with expaination
  8. ahmed abdulla

    P1 MCQ's preparation thread for chemistry ONLY!!!!

    thAt the PERFECT way ... thanks ... now i will see it i can do others :)
  9. ahmed abdulla

    P1 MCQ's preparation thread for chemistry ONLY!!!!

    help me with this .... drawing on it will be good ...i never understand from where the "O " of CHO comes ... i think i should leave it in my exam if this question comes
  10. ahmed abdulla

    P1 MCQ's preparation thread for chemistry ONLY!!!!

    thanks ... but some one expained it before u :P
  11. ahmed abdulla

    PAPER 1 MAY/JUNE 2013 PHYSICS DOUBTS HERE

    quoted from someone and cant understand too ... can u explain plz?
  12. ahmed abdulla

    Chem and phy Paper 1 .. (sticky) post doubts

    Many of us created threads for paper 1 ... but i dont know where it get diminished ! i request the Moderators ( CaptainDanger XPFMember ) to STICK this thread till the paper 1 exam finishes ... got tired everytime searching for the paper 1 thread !
  13. ahmed abdulla

    Physics: Post your doubts here!

    ??
  14. ahmed abdulla

    P1 MCQ's preparation thread for chemistry ONLY!!!!

    ?
  15. ahmed abdulla

    Physics: Post your doubts here!

    1__Two springs P and Q both obey Hooke’s law. They have spring constants 2k and k respectively. The springs are stretched, separately, by a force that is gradually increased from zero up to a certain maximum value, the same for each spring. The work done in stretching spring P is WP, and the...
  16. ahmed abdulla

    P1 MCQ's preparation thread for chemistry ONLY!!!!

    1__Two springs P and Q both obey Hooke’s law. They have spring constants 2k and k respectively. The springs are stretched, separately, by a force that is gradually increased from zero up to a certain maximum value, the same for each spring. The work done in stretching spring P is WP, and the...
  17. ahmed abdulla

    Chemistry: Post your doubts here!

    sorry if i am annoying you ! y not a ketone .... how u knew it gonna be an acid
  18. ahmed abdulla

    Chemistry: Post your doubts here!

    then from where did the carboylic acid come in the 2nd case if its not primary !
  19. ahmed abdulla

    Chemistry: Post your doubts here!

    still not getting into my brain :mad: anyway thanks :) if as u said ... then ALL should be either secondary and tertiary and there will be no primary
  20. ahmed abdulla

    Chemistry: Post your doubts here!

    for a cyclic chain .. how do we now it its primary / secondary ..? there is no "OH" or C=O ... how to now that ?
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