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  1. C

    Chemistry a level oct nov 2010 paper1

    The answer is 1,2 and 3. I think statement 1 should be correct also because sulphur dioxide has lone pairs of electrons.
  2. C

    Chemistry a level oct nov 2010 paper1

    36 Element X is a solid. It occurs as a contaminant of carbonaceous fuels. Its oxide Y is formed in car engines. Further oxidation of Y to Z can occur in the atmosphere. Which statements about Y and Z are correct? 1 Molecule Y has lone pairs of electrons. 2 The atmospheric oxidation of Y to...
  3. C

    Chemistry a level may june 2002 paper

    Hii, can anyone help me with Chemistry may june 2002 no.11?The rate decreases is because of the rate of product formed decreases causes the rate of catalytic reaction to decrease? Thank you:)
  4. C

    Chemistry Alevel May/June 2009 paper 1

    Can anyone help me with number 26? I am wondering what is D actually, it seems like it is one of the product after oxidation.
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