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  1. SIstudy

    Chemistry: Post your doubts here!

    btw ppl endothermic reactions are favoured by high temp and exothermic reactions are favoured by low temp in equilibrium?
  2. SIstudy

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w11_qp_12.pdf Q9 (D) I could make out tht glucose and fructose are structural isomers so option A and C is ruled out but cant understand how osmotic pressure is affected?
  3. SIstudy

    Chemistry: Post your doubts here!

    Oh Maiii Goddd how could I do this :/ silly me :( thank yu :D Jazak'Allah
  4. SIstudy

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s11_qp_12.pdf Q1 (B) like how?? in the question itself its mentioned tht it is an isotope meaning tht the number of neutrons is different :/
  5. SIstudy

    Chemistry: Post your doubts here!

    yu mean group 2 is an exception?
  6. SIstudy

    Chemistry: Post your doubts here!

    ZaqZainab so Ionisation energy affects b.pt? means if I.E is high, the b.pt will be high?
  7. SIstudy

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w11_qp_12.pdf Q9 (D) I could make out tht glucose and fructose are structural isomers so option A and C is ruled out but cant understand how osmotic pressure is affected?
  8. SIstudy

    Chemistry: Post your doubts here!

    it could be an aldehyde rite? but according to the answer its sayin tht this result cant be obtained :'( :'(
  9. SIstudy

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w11_qp_12.pdf Q37 (D) why the first statement is correct? I mean the empirical formula has 1 atom of O, so there must be aldehyde :/
  10. SIstudy

    Chemistry: Post your doubts here!

    yes
  11. SIstudy

    Chemistry: Post your doubts here!

    in Q37 why the first statement is correct? I mean the empirical formula has 1 atom of O, so there must be aldehyde :/ in Q26 idk wht im doin wrond I tried it many times, but my answer isn't in the options :$ :/ in Q9 I coul make out tht glucose and fructose are structural isomers so option A...
  12. SIstudy

    Chemistry: Post your doubts here!

    oh okay in Q37 why the first statement is correct? I mean the empirical formula has 1 atom of O, so there must be aldehyde :/ in Q26 idk wht im doin wrond I tried it many times, but my answer isn't in the options :$ :/ in Q9 I coul make out tht glucose and fructose are structural isomers so...
  13. SIstudy

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w11_qp_12.pdf Q37 (D) Q26 (B) Q9 (D) Q29 (D) Q35 (B) Q40 (A)
  14. SIstudy

    Chemistry: Post your doubts here!

    oh okaayy thanks a lot :) http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s12_qp_11.pdf Q23 ?? :/ (ANS - B) I don't really get the compound C drawn :S can yu also help me with this, since no one is answerin :/
  15. SIstudy

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s12_qp_11.pdf Q23 ?? :/ (ANS - B) I don't really get the compound C drawn :S
  16. SIstudy

    Chemistry: Post your doubts here!

    Well yu see at the first glimpse of the question yu should make out tht D is incorrect as the Cs and Na is in same group the charges wont also affect since Cs and Na hav the same charge the only thing tht is valid is tht Cs is quite a large sized atom, comparatively so the Ionic radius should be...
  17. SIstudy

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s12_qp_11.pdf Q23 ?? :/ (ANS - B) I don't really get the compound C drawn :S
  18. SIstudy

    Chemistry: Post your doubts here!

    See for Q11 the equation should be kinda balanced as in there is 1X in both reactant and product while Y is only n in both sides just take it as a normal eqation like Br2 -> 2Br- (n is the 2 here) I hope yu get it :)
  19. SIstudy

    Chemistry: Post your doubts here!

    Ans fr Q3 is C?
  20. SIstudy

    Chemistry: Post your doubts here!

    oh okaayy silly me :/ Thank youuu soo much ^_^ may Allah bless yu :D
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