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  1. 1

    Chemistry: Post your doubts here!

    please some one help as soon as possible oct/nov 2010 second variant numer-7,18,31,34,36. soory for so much question but what can i do the paper semmed hard for me got these mistakes and unfortunately coudnt resolve any of my mistakes:( thanks for helping all xpc members:)...
  2. 1

    Chemistry: Post your doubts here!

    can you guys please also clear my doubts which i posted in the AS chemistry forum i would be very thankfull of you please help
  3. 1

    A level Chemistry Coursebook Equilibria and Reaction Kinetic pls...

    notes uploaded forgot to add it before. first mistake in kc and kp. i get 4-5 mistake:( per paper bro sometimes even more:(. iam not that good sometimes i get really bad scores. btw ASSALAMOALIKUM
  4. 1

    A level Chemistry Coursebook Equilibria and Reaction Kinetic pls...

    believe me kc and kp is not explained well in the endorsed book the notes i uploaded there kp is explained really nicely kc i think is vanished there. but i think kp and kc dont come hard. and you have to remeber inportant point that in kp and kc if there is a element or compound or molecule etc...
  5. 1

    A level Chemistry Coursebook Equilibria and Reaction Kinetic pls...

    i wish i had time:). you need all the pages or specific the problem is if you would have tol like 2-3 days before i would have scaned them easily but now tommarow exam btw you need all pages of those chapter or any specific concept from them btw those are excellent notes that i uploaded in that...
  6. 1

    Chemistry: Post your doubts here!

    please can you explain how no for basic hydride. thanks
  7. 1

    Chemistry: Post your doubts here!

    number3 outer energy level should hhave one electron which is the case in B number-12 i think thats the correct answer. pi bond is formed by sideways overlap of p orbital in partD its i think diagonal sort of overlap whereas in partB its side ways overlap i suppose you would be confused by...
  8. 1

    AS Chemistry Doubts

    bro we have p-1 exam on 9th may and your saying youll help after 15 what's the use then, please help
  9. 1

    AS Chemistry Doubts

    is there someone who can help please
  10. 1

    A Level Last Minute Revision Notes..

    I think theses are the best revision notes you can get for all As-level chemistry chapters only 34 pages but alot worthy:) please, please pray for me i get INSAALLAH all A* in Alevels and A,s in As and i advise you guys to revice perfectly from cambridge internation cie book.:)
  11. 1

    AS Chemistry Doubts

    please can you explain a bit more because iam stii not able to understand it
  12. 1

    AS Chemistry Doubts

    please some one help as soon as possible oct/nov 2010 second variant numer-7,18,31,34,36. soory for so much question but what can i do the paper semmed hard for me got these mistakes and unfortunately coudnt resolve any of my mistakes:( thanks for helping all xpc members:)...
  13. 1

    AS Chemistry Doubts

    i didnt get your explanation for number-5 thats the only problem i got wrong and saw your explanation and coudnt understand from it, because you said C-CL and another C-CL will cancel each other so why not C-H bond and another C-H bond cancel each other. by the way as for as remeber the concept...
  14. 1

    AS Organic Chemistry Reactions(All in One)

    This may help as well detailed study for organic of As-level:), i heard he used to be karachi's best teacher, person who made these notes long time ago.
  15. 1

    AS Chemistry Doubts

    here you go:),
  16. 1

    AS Chemistry Doubts

    i dont get it like how does activation energy increase ofcourse i do know enthalpy is positive thanks for hepling:)
  17. 1

    AS Chemistry Doubts

    iam just confused like why does the activation energy increase is it because reaction will be endo so energy is required
  18. 1

    AS Chemistry Doubts

    i have a doubt in mayjune 2007 number 34 paper-1 http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s07_qp_1.pdf thanks for helping:)
  19. 1

    Share your Chemistry Mcqs marks

    ASSALAMOALIKUM so i created to this to ask like what grades are you guys mostly getting in Mcqs papers?? like there are almost 20 question from atomic structure to inorganic chemistry and 20 from organic so much do you guys get in organic /20 other /20 please do share because i suppose most of...
  20. 1

    AS Chemistry Doubts

    for number 11 as total moles in numerator and denomerator is same thats why we can use hte moles right as even if there was the total pressure it would have been cancelled out but we need the total pressure if total product and reactcant moles are different right??
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