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  1. Suchal Riaz

    Chemistry ATP Tips

    not ur fault, i got confused. u stated clearly.
  2. Suchal Riaz

    Chemistry ATP Tips

    I am expecting 60/60 :D Inshallah. I m too excited to talk about paper. but sadly we cant do it before 3 24 hours. although our Keytime ends at 1400 noon so there is so problem in talking after 0200.
  3. Suchal Riaz

    Chemistry ATP Tips

    no problem man. :) anytime
  4. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    to keep the titration result constant moles must be same, as it is not made from 25 to 250, it's concentration must be increased by 10.
  5. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    alright. here is an equation mustafa sent me: KMnO4 + KOH --> K2MnO4 + H2O what do u say now. it looks correct.
  6. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    there is reaction in 2 tubes only. if it displaces Na that it is higher more reactive that Na means it is more reactive than all metals in tubes. so there will be reaction in 4 not 2 tubes. it it displaces Mg that there will be reaction in three tubes if it displaces Zn then it will also...
  7. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    26.4 cm³ : 0.0025 mol 1000cm² : x 26.4 x=2.5 x=0.0947
  8. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    only two. means least 2. if it reacts with another one that these two also. so there would have been reaction in three not 2.
  9. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    man i have seen it in titration?
  10. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    AhsanAfzal Khadija_1234 please: Potassium Manganate is a base? if yes what is it's formula and it's equation with reaction with an acid. and color change. everything we need to know about it.
  11. Suchal Riaz

    Chemistry ATP Tips

    all information about potassium managanate, it's formula, equation with reaction with acid and any other thing i need to know.
  12. Suchal Riaz

    Chemistry ATP Tips

    when ester is formed the carboxolic acid does NOT act as acid, alcohol losses H and caboxolic acid loses OH. not H+ or OH-. there was a debate among many teachers here about this and they finally decided this to be correct.
  13. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    Saad Mughal help needed man. Potassium Manganate is a base? if yes what is it's formula and it's equation with reaction with an acid. and color change. everything we need to know about it.
  14. Suchal Riaz

    Chemistry ATP Tips

    no problem. this is how we share knowledge to ensure that everybody gets best grades he can. InShaAllah we will get best grades.
  15. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    the change is due to difference on rate of diffusion. so the gas must have same molecular mass as N2. 28 is Mr of N2 so is of CO. therefore CO is answer. same Mr same diffusion rate, no change.
  16. Suchal Riaz

    Chemistry ATP Tips

    and glass rode, dropper or SMALL pipette to transfer ink/mixture into chromatography paper.
  17. Suchal Riaz

    Imran Merchant Guess Papers

    it consists of s09 mostly. i think it was some guy who made the paper from past papers. if it was original one then it would have been scanned.
  18. Suchal Riaz

    Imran Merchant Guess Papers

    robinhoodmustafa this is the one for which i uploaded and everybody said that he has yet not released it so i thought that maybe i got wrong. thnx btw.
  19. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    iron react with water in presence of oxygen very slowly, it takes weeks to observe a change. it reacts just enough fast with steam to notice. therefore: 1-sodium react very violently, it floats on the surface of water(low density), turns red hot(due to exothermic reaction), produces a...
  20. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    the level rises or goes down due to change in rate of displacement as N2 and CO have same Mr their rate is same so no displacement of water level.
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