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  1. B

    Chemistry: Post your doubts here!

    Can somebody please explain the following questions? http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w11_qp_12.pdf Question 13 ans C...
  2. B

    Chemistry: Post your doubts here!

    Thanks so much 31 is ok, and 4 i think the question paperanswer is wrong as it should be 630.
  3. B

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/... AS Level/Chemistry (9701)/9701_w11_qp_12.pdf Can anybody please explain question 35 ans B http://papers.xtremepapers.com/CIE/... AS Level/Chemistry (9701)/9701_s12_qp_12.pdf Question 34 ans B http://papers.xtremepapers.com/CIE/... AS Level/Chemistry...
  4. B

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w11_qp_12.pdf Can anybody please explain question 35 ans B http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s12_qp_12.pdf...
  5. B

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w05_qp_1.pdf Sorry about that.
  6. B

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w05_qp_1.pdf Can anybody please explain question 19 ans B, 24 ans B and 34 ans B please?:) THANKS IN ADVANCE!(y)
  7. B

    YouTube Videos on Past Year Chemistry MCQs

    Metanoia please don't mind kingo44, your videos are very helpful and please continue your good work(y).
  8. B

    Chemistry: Post your doubts here!

    Is NO2 a reducing agent?:)
  9. B

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/...d AS Level/Chemistry (9701)/9701_s06_qp_1.pdf Can anybody please explain questions 22, 31? Ans are A and B respectively. In 22 why can't B be the correct answer and in 31 can you explain the 1 statement. Also in a reaction pathway involving a intermediate...
  10. B

    Chemistry: Post your doubts here!

  11. B

    Chemistry: Post your doubts here!

    Do both as they come I think as then you are in touch with the question and you don't have to keep on rereading the questions.
  12. B

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s06_qp_1.pdf Can anybody please explain questions 22, 31? Ans are A and B respectively. In 22 why can't B be the correct answer and in 31 can you explain the 1 statement. Also in a...
  13. B

    Chemistry: Post your doubts here!

    Thanks so much!!! And once again (y).
  14. B

    Chemistry: Post your doubts here!

    Metanoia I need structure of 30 A di(4-bromophenyl)methanol.
  15. B

    Chemistry: Post your doubts here!

    In 5 the rate should increase as the products which catalyse the reaction increase thereby elimination the answer D and also after some time as the reactants deacrease the reaction rate drops down as there are not enough reactants thereby answer being C. In 22 the answer is C as K2Cr2O7 is not...
  16. B

    Chemistry: Post your doubts here!

    Metanoia sorry but I needed the structure of A in 30. And in 9 in all the reactions H2O are formed, right?
  17. B

    Chemistry: Post your doubts here!

    In 12 can't C be a option as well? And in 18 if it is not in our syllabus how can we answer that question without knowing the structure? And going back to question 9, after calculating bond energies the bond energy required to break D is actually smaller so how to answer that question. And in...
  18. B

    Chemistry: Post your doubts here!

    Thanks so much for the help, I just coudn't figure out thee questions !!!(y)(y)(y) But in 11 isn't the Cr oxidation number changed. And in 12 there are others with the curve shifted and with a lower maximum like D for example. And in 18 how can we know the structure of the compunds such as in...
  19. B

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w04_qp_1.pdf Can anybody please explain question 5 ans B, 9 ans B, 12 ans B, 18 ans C, 20 ans A, 38 ans A, please? Some other problems are in question 11 why can't B be correct, 30 how to draw A and...
  20. B

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w04_qp_1.pdf Can anybody please explain question 5 ans B, 9 ans B, 12 ans B, 18 ans C, 20 ans A, 38 ans A, please? Some other problems are in question 11 why can't B be correct, 30 how to draw A and...
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