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  1. H

    Chemistry: Post your doubts here!

    if Hg bonds to COOH how can it disrupt the hydrogen bonding the COOH group was involved in b4? since CO part is there even in COOHg
  2. H

    Mathematics: Post your doubts here!

    last part?
  3. H

    Mathematics: Post your doubts here!

    yea myn 2 ....THIS MEANS ITS CORRECT.....actually it was from w11 paper so no ms yet
  4. H

    Mathematics: Post your doubts here!

    what ansers u get for the 2nd part?
  5. H

    Chemistry / biology /physics applications

    BIOLOGY PAPER 5 chi squared TEST:
  6. H

    A level Biology: Post your doubts here!

    http://xtremepapers.com/CIE/International%20A%20And%20AS%20Level/9700%20-%20Biology/9700_s11_qp_51.pdf IN question 1 part a.........we have t0 make a range of solutions of different molarities.......i thought that we cud make 1M sucrose soln.....and then use it to prepare the rest using serial...
  7. H

    A level Biology: Post your doubts here!

    http://ebooksfreedownload.org/2011/03/mary-jonesquotcambridge-international-aas-level-biology-revision-guide.html
  8. H

    A level Biology: Post your doubts here!

    http://www.xtremepapers.com/CIE/International%20A%20And%20AS%20Level/9700%20-%20Biology/9700_s07_qp_4.pdf Q8.PART (C) ms says make reference to polygenes.......i cnt understand how cn i relate idea of polygenes for to the answer to this question......can any body explain what the hell has...
  9. H

    A level Biology: Post your doubts here!

    one of disadvantage of GM crops is development of superweeds.......can somebody explain how gm crops cn lead to development of superweeds?
  10. H

    Physics: Post your doubts here!

    http://www.xtremepapers.com/CIE/International%20A%20And%20AS%20Level/9702%20-%20Physics/9702_s07_qp_4.pdf Q7.PART C how to approach this question.......
  11. H

    Chemistry / biology /physics applications

    GOLDEN RICE
  12. H

    A level Biology: Post your doubts here!

    What is genetic drift? can anybody explain and what the hell it has to do with speciation
  13. H

    A level Biology: Post your doubts here!

    no......it will not be passive transport since the processes of endocytosis and exocytosis require energy derived from ATP!
  14. H

    Chemistry / biology /physics applications

    yea application booklet is confusing......i m waching video and then trying to link the process decribed in video with points in revision guide and booklet
  15. H

    Chemistry / biology /physics applications

    NANOTECHNOLOGY: AMAZING STORY OF buckminsterfullerene
  16. H

    A level Biology: Post your doubts here!

    see OXYGEN being a non-polar molecule will simply diffuse out into the tissue fluid down the conc. gradient through phospholipid bi layer.......bt u have got a problem wid glucose .....since its much larger and polar it can't just simply diffuse via the lipid bilayer.......fortunately in case of...
  17. H

    Chemistry: Post your doubts here!

    "The idea of tuning the NMR frequency to identify different tissues was not well known" .............how we do this thing mentioned in the statement.....can anyone give the rough idea?
  18. H

    PRACTICE mcat MCQS

    http://www.jbigdeal.com/2011/11/aipmt-question-bank-with-solution-answer-2012-free-download.html
  19. H

    Physics: Post your doubts here!

    http://www.xtremepapers.com/CIE/International%20A%20And%20AS%20Level/9702%20-%20Physics/9702_w06_qp_4.pdf markscheme says increase amount of damping without alteration of spring constant(k) or mass(m).......bt how cn we increase amount of damping otherwiSeQ3.part (c)
  20. H

    Chemistry / biology /physics applications

    ANTIBIOTIC RESISTANCE FERMENTATION
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