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Recent content by Uranium-238

  1. U

    Chemistry AS Paper 2 Variant 1

    the question says to circle covalent bond, lone pairs....its better to circle both 00 and XX because we v to define all the electons in the outer shell!!!
  2. U

    Chemistry AS Paper 2 Variant 1

    here r the answers.... the one with cordinate bond is XX covalent bond is 2 "0X" lone pair is "OO" and "XX"
  3. U

    Chemistry AS Paper 2 Variant 1

    Hey, I need answers for P21... 1)reaction kinetics....y the reaction rate for hydrolysis of halogenoalkane is less than for neutralisation reaction? 2)y can If7 be formed instead of Clf7! Alhamdullilah the paper was good...but there is Paper 4 remaining, the toughest paper containing...
  4. U

    Doubt on chemistry

    Sorry to mention that its not melting point...its about "thermal stability" but the point which i gave is exact from the book and in more detail....."ADVANCED CHEMISTRY written by PHILLIP MATHEWS" check it out!!!
  5. U

    p2 guesses

    Guesses can confuse the students so whoevr wants to have guesses then they are most WeLCOME!!!...but i'm writing this as a warning since I also gave the exam and nothing came according to their guesses and BTW its a waste of time dealing with such matter. :ugeek:
  6. U

    p2 guesses

    its no use of making guesses ..follow the syllabus
  7. U

    Chemistry P5 (paper leak)

    :mrgreen: :mrgreen: :P Not a leak afterall...I want sum fair prediction on this paper!!! the paper is soley dependent on P3 but i want to have my own ideas kept ready...so please no 100% fake guesses... If there is anyone to provide me with practical ideas, planning skills and evaluation then...
  8. U

    Doubt on chemistry

    Not exactly, because a covalent compounds usually have higher melting point than ionic...if the polarising ability decreases the compund appears to be more ionic in nature...lets say Mgcl2 is more stable than CaCl2....but for carbonates the principle is completely different..i.e. the bonding...
  9. U

    Physics Practical/P33 Details and General Practical Tips

    it is better to depend on theoretical results for viscosity.. if the bead is small provided its of same material then equate the following...... weight=viscosity force where F=6"pi""meu"rv weight=mass into volume the overall equation shows that v is proportional to r2 which means its independent...
  10. U

    Doubt on chemistry

    thanks for the help!!! :D
  11. U

    final final details abt practicals!

    The electricity part is P31, oil drop experiment is P33 and in P34 is about osciallation Refer to the earlier forums for P34 ;)
  12. U

    Doubt on chemistry

    I want to knw whether the thermal stabilities of the metal carbontes decreases or increases down the group....it is supposed to decrease because of the increasing cationic size so they r less distorted and less energy is required to break them down....if its not then whats the proper answer!!!!
  13. U

    Physics p33 errors

    the digital micromemter is not recommended in the resource list so y to worry about the apparatus...Just stick to the rules and do the best in the the exam!!! All we need to do is finish the paper on time and if we have any problems in the middle jst call the invigilitator "Jst as zwitterion...
  14. U

    physics applications

    Yes...but there is still more to explain!!!! I went through both Application for physics n Chemistry.....but the explanation is very different In chem....it says if radio frequency range is equal to change in enrgy levles between two spins, it leads to flipping of the protons/electrons which...
  15. U

    Chemistry, Physics, Biology Paper 3 GUESS

    i v physics tomorrow.... tell me the points required to arrange the oscillation experiment for P34 RSVP :)
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