• 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. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Anybody!! Oct nov 2013 question 37 38 and 22!!! Pleaseeeee hurry up someone!
  2. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Somebody answer my questions. Please?
  3. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    May June 2012 question 26 39 and 40 please!
  4. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Somebody check November 2005 paper 1 mcq 18' shouldn't it be d instead of b????
  5. Mahnoorfatima

    I'm asking you dude. I got the same.

    I'm asking you dude. I got the same.
  6. Mahnoorfatima

    And tell me that's totally correct? :D

    And tell me that's totally correct? :D
  7. Mahnoorfatima

    What was your percentage of zno in chem paper?

    What was your percentage of zno in chem paper?
  8. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    The percentage in yesterday's paper was? The zno one???
  9. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Ok Off to bed. Good Luck everyone. Inshaa ALlah the paper will be easy. May Allah help us tomorrow! Ameeeen!
  10. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Could you please give me the question? :/
  11. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Gimme the question?
  12. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Idk! Its in the reactions.. My teacher give me.. Atleast the reaction with Na metal produces 1/2 H2. When you balance it.
  13. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    WHAAAAT! How can FeSO4 be colourless. It has to be green, no?
  14. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Dude when a carboxylic acid reacts with a metal like Na metal the product is salt and H2 gas right? So as the acid is a weak one, thus 1/2 H2 has to be produced EVERYTIME?
  15. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    1/2 H2 is produced everytime a carboxylic reacts with a metal????
  16. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Ok. So when a carboxyilic acid reacts with metals every time 1/2 H2 would be released or it varies?
  17. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Hydrogen produces bubbles doesnt it? Plus it's a porous pot where the air is present. Therefore light gases tend to move into the porous pot, would be carried by the long tube thingy due to diffusion and produce bubbles in water. It's more of a tukka question if you notice. :p I guess.
  18. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    It doesnt matter if we write reddish or just brown. I mean there's no hard and fast rule. Is there??
  19. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    I dont know the middle one but the last one is Hydrogen because it's lighter and would diffuse into the porus pot as the it's Mr is 2. The lightest would diffuse the fastest.
  20. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    For question 6 see that the expt 2 and 3 the end point of volume evolved is same thus the number of moles ought to be the same only the rates of reaction are diffrent. The 2009 paper.
Top