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  1. S

    How was Biology Paper 22 MAY/JUNE 2017?

    Aorta is organ because it is comprised of various tissues like smooth muscle tissue,elastic tissue and collagen,etc...and we had to write the functions of tissues as well...
  2. S

    How Was Chemistry Paper 22, MAY/JUNE 2017?

    Nope..NO acts as a catalyst not NO2
  3. S

    How Was Chemistry Paper 22, MAY/JUNE 2017?

    Gt will be 48-49
  4. S

    How Was Chemistry Paper 22, MAY/JUNE 2017?

    What was the role of NO2? I wrote oxidises so2 to so3
  5. S

    How Was Chemistry Paper 22, MAY/JUNE 2017?

    10.9941 was the answer
  6. S

    How Was Chemistry Paper 22, MAY/JUNE 2017?

    Hbr bond strength greater than HI due to short bond length and greater overlap of orbitals hence electrons are closer to nucleus
  7. S

    How Was Chemistry Paper 22, MAY/JUNE 2017?

    Equal number of moles of gas present on both sides of equation
  8. S

    How Was Chemistry Paper 22, MAY/JUNE 2017?

    I wrote structural formula of eyhanoic acid and methyl methanaote instead of.their names will it be acceptable?
  9. S

    May June 2016 O level Papers

    do u have mark scheme??
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