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Search results

  1. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    I have the questions of bio are getting tough as years past
  2. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    The paper was very easy Tension for bio paper 4
  3. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    There was no temperature requirement
  4. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    It was propene and structure was simple CH3-CH-CH2 and it was of two marks
  5. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    If u r from pises then it was clearly written in our book that it is concentrated sulfuric acid
  6. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    Thnx eeally appreciate it
  7. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    Thnx
  8. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    bi) -2 ii) 2Ag+ + Cr2O7-2 c) turns blue ammonia is produced di) ammonium dichromate has more Mr then silver nitrate slower rate of diffusion and red solid was silver dichromate ii) less time taken as more energy so more rate of diffusion ei) breaking down of substancesdue to heat * ii)...
  9. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    Q2a) filtration wash with excess water then dry between tissue papers
  10. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    Please be careful
  11. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    Btw the internet transactions have been hacked
  12. Osman Kaleem

    Can someone send me feb/mar 2017 question papers plsss

    i begin for Q1 ai) A ii) B and C iii) D iv) A v) A vi) Carbon dioxide and water bi) lubricating fraction and bitumen ii) refinery gas iii) refinery gas iv) kerosene v) boiling of petroleum
  13. Osman Kaleem

    Can someone send me feb/mar 2017 question papers plsss

    I think we must discuss answers of feb mar chem paper 4 to make sure of them
  14. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    i begin for Q1 ai) A ii) B and C iii) D iv) A v) A vi) Carbon dioxide and water bi) lubricating fraction and bitumen ii) refinery gas iii) refinery gas iv) kerosene v) boiling of petroleum
  15. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    I think we must discuss answers of feb mar chem paper 4 to make sure of them
  16. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    C3H4O4
  17. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    Has anyone got answers of feb mar 2017 chem paper 4
  18. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    me too:)
  19. Osman Kaleem

    Can someone send me feb/mar 2017 question papers plsss

    Ayesha Asif333 posted it for chem paper 4
  20. Osman Kaleem

    Physics, Chemistry and Biology: Post your doubts here!

    are u from riyadh
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