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  1. I

    Chemistry Paper 2

    methane can not form first as it has a very low boiling point. For example (just an eg) if the boiling point of methane is -100*C and that of Butane is -10*C. If the current temperature is 25*C and it is cooled to -20*C, droplets of butane will form as the temperature is now below the boiling...
  2. I

    MATHS 4024 PAPER 22

    Yea the examiners will check only the first four. My school even warned us that people answer all questions by thinking that the examiner will mark the best answered questions when they dont. They check the first 4 answers and cancel the other one
  3. I

    Please answer this

    no, dude. It will be accepted and marked
  4. I

    Merchant's guess paper???

    in increasing boiling points: petroleum gas, petrol, naphtha,Kerosene/paraffin, diesel, lubricating oil and finally bitumen(tar)
  5. I

    Merchant's guess paper???

    Sort of like a battery. It produces electricity by electrolysis
  6. I

    MATHS 4024 PAPER 22

    @workaholic seems like you really hate the british!! :P
  7. I

    Chemistry Paper 2

    droplets of butane will be formed first. It is a general properties of alkanes that the physical properties gradually increase. The boiling points increases as the number of carbon atoms increases. As methane has the lowest number of atoms, it has the lowest boiling point. As butane has the...
  8. I

    Chemistry Paper 2

    sulfuric acid or any other electrolyte which produces oxygen and hydrogen at the electrodes...i think...anyone please correct me if i am wrong.
  9. I

    CHEMISTRY HELP NEEDED!!

    Well group 1 metals are all white or silvery white. Compounds of transition metals are couloured e.g copper2 sulfate is blue, Iron chloride is yellow, iron sulfate is green, copper2 oxide is black. Zinc oxide when cold is white and when hot is yellow. Copper itself is a pink solid and iron is a...
  10. I

    Your Current Mood.

    I am feeling elated! Dunno why but i am really excited abt tomorrows paper!!
  11. I

    CRICKET anyone?

    Re: CRICKET ANYONE @arlery I like the way you think mate! :P :P
  12. I

    Chemistry Paper 2

    A fuel cell is a device which as the name suggests, uses a fuel to generate electricity. A common fuel cell is a hyudrogen and oxygen fuel cell in which energy is released by combining the two reactants to form water. Sulfuric acid can be made by contact process. i) Sulfur is burned in air to...
  13. I

    Help us improve XtremePapers!

    I think we all agree on changing the colour and layout of the website. Can anyone think of any other suggestions??
  14. I

    Best of Luck!

    A couple of distinctions along with straight A*s wont be too bad..! :P :P :)
  15. I

    CRICKET anyone?

    Re: CRICKET ANYONE dude this has been happening over and over again. Once even the senate and the assembly united to remove the PCB chief but were unable to becuz of our beloved president. So noone can remove Butt until the president is there and unfortunately no one can remove the president...
  16. I

    Chemistry Paper 2

    Anyone has any idea of the imp topics that shud be revised right now? I mean those topics which are highly expected to come?
  17. I

    Chemistry Paper 2

    No problem mate :) :P
  18. I

    Chemistry Paper 2

    @ amazon the overall reaction is 2H2 +O2--->2H20 the ratio of hydrogen to oxygen is 2:1. Therefore 240 dm3 of hydrogen reacts with 120dm3 of oxygen. now, 120dm3 of oxygen is being used. So therefore the number of moles of oxygen being used is 120/24 (volume= no. of molesx 24dm3) = 5 moles. 5...
  19. I

    Chemistry Paper 2

    yea!
  20. I

    Chemistry Paper 2

    you had anhydrous copper (2) sulfate. This is a white powder which in the presence of water turns blue and forms hydrated copper 2 sulfate.
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