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  1. H

    Chemo P5 tips

    TIP do not say more collisions as the reason for increase in rate of rxn.....rather say greater COLLISION FREQUENCY!!!
  2. H

    Chemo P5 tips

    link is in the forum.......chek the announcements thread
  3. H

    Chemo P5 tips

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w10_qp_51.pdf q2 part d bat anomalies......isnt it rong to say temp. taken b4 freeaing was complete.....it shud have been that temp. taken b4 freeaing started cos during freeazing...
  4. H

    Chemo P5 tips

    just past hee gas through a beaker containing water where an inverted bureette containing water has been placed
  5. H

    Chemo P5 tips

    yea i dont saw at actually .....bt there is a partition in the concial flask between solid and and liquid....so when u shake the flask the partition wall falls down one USEFUL TIP.... Whenever dealing with hydrogen or other flammable gases in any experiment....safety precaution is too keep away...
  6. H

    Chemo P5 tips

    one more tip let say u are running a decomposition experiment .....then the possible errors cud be SOLID BLOWN OUT DUE TO NOT HEATING GENTLY........and INSUFFICIENT HEATING SO NOT FULLY DECOMPOSED........the point of overheating does not applies everywhere....cos some residue salts require...
  7. H

    Chemo P5 tips

    TIP... WEHNEVER EXPERIMENT OF TEMP. ON RATE OF RXN must equlibirate both solutions to be mixed for reaction to water bath temperature ~!!!!
  8. H

    Chemo P5 tips

    a useful RULE OF THUMB Reference to ‘hot’ apparatus, not Bunsen or water......meaning bunsen burner shud never be identified as a hazard!!!
  9. H

    Physics / Chemistry / Bio P5 help

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s07_qp_5.pdf CUD U SOLVE ITS QUESTION 2.......I MEAN GRAPH......icnt understand....my graph has lots of distant point...
  10. H

    Physics / Chemistry / Bio P5 help

    this is wat m telling from experience....whenevr u see the word solubility ......ITS ALWAYS A CURVE !!!
  11. H

    Physics / Chemistry / Bio P5 help

    well tell me this that if i have a scale which doesnt giving recurring decimals as number of boxes bt does give things like 8.8 boxess .....36.4 boxes.......so how do we plot that ......do we approximate it to nearest whhole number?
  12. H

    Physics / Chemistry / Bio P5 help

    a rule of thumb IN AN EXPERIMENT .....IDEALLY WE SHUD ONLY BE CHANGING THE INDEPENDEDNT VARIABLE..........EVERY OTHER THING SHUD BE EXACTLY THE SAME ..........
  13. H

    Physics / Chemistry / Bio P5 help

    welll is this the the thread for discussing problems alsoo........ now http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s07_qp_5.pdf in this question we have to carry out a reaction.....how can we control temperatire throughout...
  14. H

    HOW was biology PAPER 42?

    i also forgot.....bt assuming u al have mentioned the question u anwered where u wrote answer.......thee examiner will undrstand
  15. H

    HOW was biology PAPER 42?

    someone wrote 79 gt.....that got me a bit worried......does oanyone gets a 100 too.....i dint do any mistakers bt think some of my suggestions myt not be good enough
  16. H

    HOW was biology PAPER 42?

    WELL 85+ is cnfirm A satr ryt assuming that i did awesome AS papers also
  17. H

    A2 Biology | Post your doubts here

    u mean abt golden rice......i ahd problem with the part asking why beta carotene less form daffodil gene,.....others went great........bt CN GT be 79
  18. H

    A2 Biology | Post your doubts here

    well arent u guyx telling too high a GT for paper 42 i.e 71-78....well m confident of getting 85+.....will it be a star then,..... how it ll be so high in 70s....i dont get that cos many people found it very demanding
  19. H

    wat did u wrote....allopatric or sympatric and why....

    wat did u wrote....allopatric or sympatric and why....
    • hassam
    • Profile post
  20. H

    HOW was biology PAPER 42?

    the most weird question was 1st one in which the asked allopatric or sympatric speciation...........dont knw wtf examiner thought when making this one...........i personally think both shud be allowed as an anser
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