• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Search results

  1. I

    Urgent Help physics waves

    can u send some on that path difference and phase angle difference..........n how to plot waves when phanse angle difference given etc..............
  2. I

    Physics P2 Help Required

    hey can any one of u can post the ms paint diagram of deviations of x-partices in gold foil experiment question..............as asked in n2004 q7 b)
  3. I

    Physics P2 Help Required

    M/j 2006 q5) c: as we have derived the formula W= 1/2 k(x2^2 - X1^2) so now put the values..... as the string r already extended by 4.5 cm............. so when trolley is koved 1.5 cm either on any side......... so length of one struing wud be now (4.5+1.5= 6) n one wud be (4.5-1.5= 3) so...
  4. I

    Physics P2 Help Required

    interference means meeting of two waves at a point..................... fiffracyion means spreading of waves when passed through any slit or gap........
  5. I

    HElp In Chem Questions plzz...

    june 2008 q8) absolute temp is directly proportonal to the volume of the substance.............bt if pressure is kept contsant if temp increases particles expand .............so volume increases bt if pressure in constant....... so graph D is the ans.......
  6. I

    HElp In Chem Questions plzz...

    June 07 Q4| as electron is negatively charged so it will move towards positive plate neutron r neutral so no deflecton.. n protons move towards negative... so only 1 and 2 was correct...........(ans= A)
  7. I

    CHEM IMP P1 QUES NEED HELP

    there would be no effect on kp due to pressure change...........as kp and kc are only affected by change in temperature....................
  8. I

    PAPer 1 chemistry 2004

    Q 38) in this question we will look to the bond energies.... if less bond energy than less time to break.. so c-br n c-I have less bond energy than c-cl as we know... so option 2 n 3 r correct........... bt if u see the difference between the orignal compund n option 1 u...
  9. I

    PAPer 1 chemistry 2004

    Q 10) 2 H20 = 2 h2 + o2 equlibrium 0.80(remains) 0.20 0.10 (distributed moles according to molar ratio) 0.20(REACTS) so molar fraction moles/ total moles now...
  10. I

    PAPer 1 chemistry 2004

    q9) listen always remember that always alkanes will release grater amount of enrgy of all. then alkene n alkyne n so on....................so ans = B all other were alcohol ketone n acid.....
  11. I

    PAPer 1 chemistry 2004

    hey dude in OCT nov 2004............... i also got 3 and 7 wrong so post u later after having discussion wid my frndz........ Q8) pv =nrt p= (1.6*10^3) ( 8.31) (273 + 273(k)) / ( 3*10^-3) as the volume is in dm^3 so divide it by 1000 to convert into m^3...
  12. I

    PAPer 1 chemistry 2004

    Q 30: 2 mol of hcn will react with 2 mol of aldehyde that obvious ( nucleophillic addition) so ans D
  13. I

    PAPer 1 chemistry 2004

    Q25: hey dude he ask which reaction cannot occur in catalytic converter.......................( or u cn say which dnot remove hazardous gases) so we only read sum of these reaction occur in converter co + no = co2 + N2 co + o2 = co2 option A contain the reaction wich is not possible and it...
  14. I

    PAPer 1 chemistry 2004

    Q23) cracking convert bigger hydrocarbon into smaller ones bt the ans given in D is even bigger than the substance which is cracked.... cont there r 10 carbon is the D option........... so cannot be possible..
  15. I

    PAPer 1 chemistry 2004

    q18) 2 nacl + h20= 2 NaOh + cl2 + H2 58.5/(58.5)= 1 moles of Nacl so now find out mass of h2 naoh n cl2... acc to molar ratio u will get ur ans to be A
  16. I

    PAPer 1 chemistry 2004

    Q3) moles of sodium azide = 50/(23+ 14+14+14) moles = 0.769 molar ratio of Na N3 : N2 2:3 so 2=3 0.769=x x=1.15 mole v = 24 into 1.15 = 27.7 dm3
  17. I

    PAPer 1 chemistry 2004

    Mj 2004...... Q1) find moles of the followings given and multiply it 6.02 * 10*23........... mass of H = 1/1 so mass of neon 20/20 so it will gave the same ans as H wud give (ans = C)
  18. I

    physics p2 guess despertlyy neededdd :'(

    me too pm me.............
  19. I

    Can I still get an "A"..please say "YES" na.. :p

    in chem u should score abv 30 in p1 to made chances for A grade.................... n in maths u can score A grade bt also depends upon on the grade threshold of ths tyme................ n in physics if u score high in p2 then there wud be sum possible change(em not sure) bt if u not then no...
  20. I

    Any one joining KIPS after Alevels?

    btw hez saying rite .......kips ka motive wakai yehi hota hai..........har bacha tauba tauba krta hai...................ke bht padhate hai.......
Top