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For P4 Applications 1- The principle of genetic fingerprinting should be known. (in terms of VNTRs) 2- The principle of H-NMR is must. (N.07) 3- As for nanotechnology learn the basics: a) The properties of the materials at NANO scale are different from bulk materials. This brings TWO...

For P4: In J.10/42 duration was 1hr 45 min and there were 8 questions. In N.10/43 duration was 1hr 45 min and there were 11 questions. Therefore In J.11 in 2 hours there would be 9 to 10 questions.

My dear O level-students! Guessing at ur level is rather clumsy because O-level chemistry is too big to be handled. Although topics can be looked. Bonding dot and croos diagram Moles Basic and acidic oxides (properties) recognizing functional groups

Guess papers and topics regarding which subject?? All subjets??

For practicals Moles concept should be perfect. It will help you in P2 and later on A2 in P4.

Are you appearing for A2 or AS?

REGARDING PAPER 4 1- The topics that i have posted are not wild guesses. I have followed the pattern of CIE papers. 2- But you should still count them as "special topics". 3- Another point that most people overlook is the relation of NOV papers to the immidiate June papers. For instance...

No. You cannot predict the exact paper pattern but the topics can be predicted easily for both P2 and P4. For P2: 1- orbital overlap 2- PV=nRT and kinetic molecular theory 3-Numerical for Kc + Equilibrium 4- Alkenes reaction with hot KMnO4 5- Period 3 oxides OR group 2 reaction with water...

CIE NEW BOOK! This is about the new CIE-endorsed book for A-level chemistry. Can u tell me how many pages it contains? Does it cover the Application booket material?

NO. This is applications of biochemistry in chemistry. This is biology question basically. Even bio students would not be aware of the details. but you should know the sequence of DNA replications and the specific roles of different rNA molecules.

Follow the guidelines for A2. 1- Revise AS organic. There is at least 8 marks from AS organic. (J.08, J.07/Q. 6) 2- max 28-30 marks are from organic chemistry. (J.08, N.09, J.10) 3- normally benzene, phenol are given one question. Derivatives of benzene also.revise them well. (specially N...

you did not mention which chapter you have done in A2 chemistry. You are on electrolysis right now. Well it is electrochemistry if you say appropriately. anyway whichever chapter u have done practice a lot. You need to hurry up. By this time Application Booklet should have been started in your...

Bright students sholud study!! It is surprising that you are expecting A* in your retake yet you have not touched A2!! My next few comments would certainly set you on fire but I cannot stop myself. My dear this is not an intermidiate course which can be finisnhed in 3 months. Why don't you...

The electronegativity of nitrogen is 3.0 and that of chlorine is 3.25. Always remenber that there are only ATOMS which make chlorine partially positive (or drags its electrons) these are Fluorine(3.98) and Oxygen(3.5)-both are more electronegative than Chlorine. The june 2008 question was...

Few concerns!! 1- How would you ensure that the Lucky Draw is fair? 2- What after grabbing all the topics posted by the users the xtremepapers says the conetest is over and no prizes will be given? 3-I would recommend you to draw on qualification basis like O-level separate, A-level...

Thank you for such compliments. More will be added very soon.

I need A-level chemistry June 2010 examiners' report. I saw it on the June 2010 resources but it is not there now. where can i find that? I need it badly.

C-Cl bond energy is not directly related here. Remember we are comparing ethanoyl chloride (CH3COCl) with ethanoic acid (CH3COOH). Cl is good leaving group in ethanoyl chloride BUT OH is bad leaving group in ethanoic acid We have to make OH a good leaving group i.e to convert it into a group...

ethanoyl chloride vs ethanoci acid this is one of the reasons. Whats the other.........................

Ok take more.......... How can you ignore the lightening of electricity breaking the N-O bond in air! How would you take the spiral DNA and its derivatives disclosing the new facets of life!! you should thank Allah Almighty for providing you the protein-skin without which we cannot survive! Can...