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  1. D

    How was Biology Paper 42 MAY/JUNE 2017?

    For sure. O/A level resources fb page is trusted 100%. He posted ms too.
  2. D

    How was Biology Paper 42 MAY/JUNE 2017?

    EXACTLY 55 IT IS!
  3. D

    Unable to login on myresults website.

    Yeah a bit ago i found that i wrote I instead of l. Both letters look exactly the same in my phone message.. So that was the problem. :D
  4. D

    Unable to login on myresults website.

    Are you guys able to login? I remember last year i was able to login earlier with "Result awaited" written in front of the subjects taken..
  5. D

    And the other question seemed pretty tough. One part on tongue and 2nd on endocrine glands i...

    And the other question seemed pretty tough. One part on tongue and 2nd on endocrine glands i think. Don't worry, the paper will be out before your exam...
    • darks
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  6. D

    The paper 4 was quite tough.. Paper 2 was easy, so as long as you cover the entire AS syllabus...

    The paper 4 was quite tough.. Paper 2 was easy, so as long as you cover the entire AS syllabus, you will be good. For paper 4, read every line of the syllabus carefully as any point can come in the long question. I do not remember exactly but we had a question on stomata (both a and b parts)...
    • darks
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  7. D

    Chemistry: Post your doubts here!

    I asked this q. a few pages back. Metallic9896 answered it as follows... As zellyman said, P is same in both so in first situation: P = nRT/V You don't know n but you do know that n = mass/Mr and you have mass so substitute that in, convert T from C to K, convert V from 0.025 to 0.000025 if...
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    Chemistry: Post your doubts here!

    Sure. I think you have reached moles at equilibrum for NH3 and HCL to be 0.7. so Kc=[NH3][HCL] vol. is given. Kc=[0.7/0.5][0.7/0.5]=C
  9. D

    Chemistry: Post your doubts here!

    For Kc do not consider solid and you should get correct answer! Good Luck! It was easy for us!
  10. D

    Chemistry: Post your doubts here!

    GOOD LUCK GUYS!! I am out now! I hope we all nail the exam! (y)(y):sleep::sleep:
  11. D

    Chemistry: Post your doubts here!

    I hope they don't come, or the easier ones come :p
  12. D

    Chemistry: Post your doubts here!

    Any tips for structural isomers etc? for cis trans... "2^no of double bonds" for optical... "2^no of chiral carbons" for stereoisomers... "2^no of chiral carbons+double bonds" The double bonds are of of course cis trans C=C only.
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    Chemistry: Post your doubts here!

    Yeah it has some really tricky Qs, must solve.
  14. D

    Chemistry: Post your doubts here!

    0.002 : p
  15. D

    Chemistry: Post your doubts here!

    Both 1, and 2 will cause hydrolysis of the ester group. Na does not react with any group present.
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    Chemistry: Post your doubts here!

    As Mn2+ is produced, it catalyses the reaction according to the question. So as reaction proceeds, faster decrease in reactant (MnO4-) is seen. Enough to reach answer. Then as reaction further proceeds, MnO4- is now no longer in excess or is less, so reactions slows down, eventually coming to a...
  17. D

    Chemistry: Post your doubts here!

    Thanks a lot! This was really complex for me idk why : / but i got it!
  18. D

    Chemistry: Post your doubts here!

    came in a latest p2... so can come in p1.. the 2nd equation might also have 3Cl- in products as spectator ions.
  19. D

    Chemistry: Post your doubts here!

    FLAME TESTS Na -golden yellow K -lilac Ca -brick red Mg -white Li -red Ba -apple green Sr -red Anymore to learn?
  20. D

    Chemistry: Post your doubts here!

    Guys i recommend learning the balancing of this equation : 3 Cl2 + 6 NAOH = 5 NACl + NAClO3 + 3 H2O it can save time.. And comes quite often in calculation Qs.
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