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  1. S

    Chemistry P4| A2 only

    guys plz help meo ut with this one... http://www.xtremepapers.com/papers/... AS Level/Chemistry (9701)/9701_w11_qp_41.pdf Q2a..how is it 1st order with respect to H+..im getting zero :s
  2. S

    Chemistry: Post your doubts here!

    thanks..plz see if you can help me out with this one.. http://www.xtremepapers.com/papers/... AS Level/Chemistry (9701)/9701_w11_qp_41.pdf Q2a..how is it 1st order with respect to H+..im getting zero :s
  3. S

    Chemistry: Post your doubts here!

    OH. so they want us to memorize the spectrum..that sounds weird. but anyway thanks:)
  4. S

    Chemistry: Post your doubts here!

    hmm..so if talk in terms of the pastpaer question.. C has an absorption peak at 450nm aprrox. frm the table we get it as blue. but the answer is red!
  5. S

    Chemistry: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w11_qp_41.pdf Q2a..how is it 1st order with respect to H+..im getting zero :s
  6. S

    Chemistry P4| A2 only

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w09_qp_41.pdf Q3 b..
  7. S

    Chemistry: Post your doubts here!

    i dont get part i..
  8. S

    Chemistry: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s07_qp_4.pdf Q4 c.i..why is the ans for solution D blue..why not violet?
  9. S

    Chemistry: Post your doubts here!

    thanks..could you please explain the spliiting of degenerate orbitals.. as in why it happens.. And why d x2-y2 and dz2 move to a higher energy level..
  10. S

    Chemistry P4| A2 only

    *contrast, qualitatively, the melting point, density, atomic radius, ionic radius, first ionisation energy and conductivity of the transition elements with those of calcium as a typical s-block element..i went through roger norris for this..it only states the difference between the two. do we...
  11. S

    Chemistry P4| A2 only

    how is Cu a transition element..it doesnt have an incomplete d orbital..?
  12. S

    Chemistry: Post your doubts here!

    Electronic configuration of Cu is 1s2 2s2 2p6 3s2 3p6 3d10 4s1... its d orbital is completely full so how is it a transition element??
  13. S

    yes..you explained it really well. now i know who to ask for help with statistics! :) :P

    yes..you explained it really well. now i know who to ask for help with statistics! :) :P
  14. S

    Mathematics: Post your doubts here!

    DUDE. YOU'RE AMAZING. thanks a million! :)
  15. S

    Mathematics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s10_qp_63.pdf Q3..last part!
  16. S

    Mathematics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s10_qp_61.pdf Q6 please help..
  17. S

    Mathematics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s10_qp_61.pdf Q2..how to find upper n lower quartile.my ans doesnt match the ms..
  18. S

    Mathematics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s10_qp_62.pdf Q7..part ii onwards.. PLEASE HELP! its permutations n combinations question!
  19. S

    P5 chemistry..help

    i know that..i meant numerical values... i cant think of a suitable scale such that 75% of graph is covered!!
  20. S

    Paper 5 question!

    i know that..i meant numerical values... i cant think of a suitable scale such that 75% of graph is covered!!
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