Chemistry Paper 2 WASSCE (PRIVATE CANDIDATE), 2019

Candidate's Strength

 

Candidates were able to:

  • solve questions on mass – mass relationships;
  • state the difference between a simple sugar and starch;
  • write the chemical equation to show the dissociation of H2CO3 and CH3COOH;
  • state the uses of sodium trioxocarbonate (IV);
  • solve questions on solubility and determine the percentage of substance in a saturated solution cooled;
  • state the important points of Dalton’s Atomic Theory;
  • state a test to confirm the conversion of sulphur dioxide to tetraoxosulphate (VI) acid;
  • write a balanced chemical equation for the complete combustion of carbon;
  • use Dalton’s atomic theory to explain the law of multiple proportions.