• 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. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    Dude,hate to break it to u,the quation read 3Fe +4H20(g)=Fe203 and 4H2(g) since pressure affects only gaseous reaction the 4 moles of each gas steam and water r present and hence any pressure chng will not shift the equilibrium
  2. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    I absolutely agree..Look I am not saying urs is wrong..not by a long shot..I am just saying its wht they wrote in MS tht,s all...Like I said they do amend the questions and perhaps at higher levels unsaturation may refer to other double bonds but in Olevels they just want us to get the gist or...
  3. M.Omar

    Yar was the question abt sec B part b tht wht effect wud incr temp be in rate of reaction or...

    Yar was the question abt sec B part b tht wht effect wud incr temp be in rate of reaction or position of equilibrium?
    • M.Omar
    • Profile post
  4. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20O%20Level/Chemistry%20(5070)/5070_s11_qp_22.pdfit was the second ppr I looked into...
  5. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    possibly but sersiously I cant tell...There r sometime too syllabus oriented for olevels tht they wud accept an answer relevant to Olevel only...Perhaps unsaturation may have sthh with other double bonds..But right now I have just stated u the words of MS
  6. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    it,s a class alright.... I wud not say tht for myself Section B q3..
  7. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    I don't know exactly ...but only carbon to carbon double bonds are converted to single bonds turning them to saturated for instance carboxlic acid aint saturated (I know not the right term) bit it,s these double bonds tht make it saturated ..Abt the MS I don't know exactly s11 to s13(iinclusive...
  8. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    Correct 1mark double bonds of carbon to carbon 1 mark for many such bonds did u write double carbon to carbon p.s it, in the mark scheme the 2 pts
  9. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    Lol Y did u do tht Danial...Starch is a poly mer..hydrolysis changes to a monomer.Btw did u look it up in the syllabus or any special reference book
  10. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    http://www.physicsclassroom.com/class/refrn/Lesson-5/Image-Formation-Revisited U might want to rephrase tht.. I think i cant convey it properly enough ..Hook up the conv lens img formation.U will get wht I mean
  11. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    I assume u want me to state tht it can be any one or tht I am not sure which one...The pt I am trying to say is tht despite the refraction(which is one time only)it will meet at tht point and we can easily adjust the line accordingly
  12. M.Omar

    How was paper went of CHEMISTRY 5070/22

    So there u have ur answer...CO is a reducing agent(strng one) hence oxidises....carbon will not be produced
  13. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    Woah calm down bro;everyone commit mistakes or have regrets in the end,we just cant have everything.Dont take it hard on urself
  14. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    Yeah...but Y did u write sugars
  15. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    Oh yeah and abt tht lens question I forgot....In exams we only have to refract it once thru the vertical line and even practically though it does go thru 2 refractions it,ll meet at one point...Needless,we need only to sketch its path thru one refraction and make sure it meets at tht point on...
  16. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    So I guess we were not violating after all.... 1 hr +1 hr 30 min + 30 min break + 20 min travel . so pangs of guilt removed!
  17. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    Wht,s the use now? ok then
  18. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    http://www.chemguide.co.uk/atoms/bonding/metallic.html A compr explanation...P.S Mg atoms are not larger than sodium..Infact smaller due to inceasing pull frm mg ion
  19. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    Coz I want to know the max time diff between Pak time and the region at the boundary of our zone..If it,s more than 3hrs then they wud have seen som stuff of this thread....Gr8 now I am feeling guilty!
  20. M.Omar

    Biology; Chemistry; Physics: Post your doubts here!

    Guys just wondering since our variant is 2 wht region is defined for this variant...Any one knows the exact range
Top