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  1. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    Hydrogen doesnt balance!
  2. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    C i think!
  3. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    It is Carboxylic acid X is carbon so it is 4 Y is Oxygen so it is 6 Z, we dont have to even look at it! so its C
  4. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    2H2O --> 4H+(aq) + O2(g) but in the marking scheme it is given: 2H2O --> 2H+ + O2 + 2e- yes ms is wrong! it isnt like there are no mistakes in ms, i once read: potassium permanganate turns green! :P it was supposed to be colourless!!
  5. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    electrolysis is the passing of a current through an electrolyte (molten or aqueous) with the decomposition of the electrolyte as a result.
  6. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    removing the products or the reactant, favours the reversible direction in that way, similarly, adding any of the product or the reactant favours the reaction in the other direction!
  7. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    INshallah! Allah aap ki zubaan mubarak karay!
  8. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    bus kar do yaar!!! i try! dua karo bhai ka pehle A* to aa jai, tum distinction ki baat kartay ho! :D
  9. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    :)
  10. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    you were saying?? :P
  11. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    -273*C = O K is the lowest possible temerature(-273.15*C) as at this low temperature, all activity of atoms ceases, and the atoms come to a complete stop. the temperature has not yet been reached, though scientists have managed to bring it close to a billionth of a degree to -273.15*C !
  12. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    Meraa bhi khaana khatam ho gaya hai, going to study now!!
  13. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    no one forced you to stay here. :rolleyes:
  14. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    yes!
  15. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    nahin, maybe kuch conditions change ki hon gi, but mainly, yahan pai elimination method use hoga, kai aur koi optionj nahin hosakta to iss liay yeh option.
  16. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    sorry yar main so gaya tha solve kartay huay :oops: :eek: :P :) :D:D:D:D :ROFLMAO:
  17. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    actually, it was something like this that only water or nitrogen could contaminate solution. But if collection above water is used, it means that it doesnt matter that the sample is contaminated by water! and about N2, i think that after 2 or three reactions, the nitrogen in flask is replaced...
  18. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    w11_qp21 Q8 (a)(ii) http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20O%20Level/Chemistry%20%285070%29/5070_w11_qp_21.pdf ab rona mat kai yeh kahan sai aa gaya! i tod you so! :P
  19. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    increase the temperature. that will favour backward reaction
  20. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    i read in a past paper once!!!! :eek: around 2006 till 2008. So yeah, it is in our syllabus, and i lost a mark solving that. :P
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