Chemistry Specimen & Practicals 2017 | WAEC Practical Past Questions & Answer

Chemistry Specimen & Practicals 2017 | WAEC Practical Past Questions & Answer - This is the list of specimen and practical requirements for the upcoming WAEC examinations in 2017. This post will guide you properly on what you should expect during the practicals in May/June 2017.


CHEMISTRY SPECIMEN 2017


  1. Dilute sodium hydroxide solution
  2. Dilute ammonia solution
  3. Dilute hydrochloric acid
  4. Distilled water
  5. Red and blue litmus paper
  6. Fehlings solution (I II)
  7. Concentrated tetraoxosulphate (vi) solution (H2SO4)
  8. Freshly prepared iron (II) tetraoxosulphate (VI) solution (Fe2SO4), burette (50cm 3), pipette (20cm 3 or 25cm 3), filtration apparatus, methyl orange, boiling tube, test tubes, SALTS: CuO,ZnSO4,Na2CO3


QUESTION 1 - CHEMISTRY PST QUESTION

In addition to the fittings and reagents normally contained in a chemistry laboratory, the following apparatus and materials will be required by each candidate

  • One burette of 50cm3 capacity
  • One pipette, either 20cm3 or 25cm3. All candidates at one centre must use pipettes of the same volume. These should be clean and free from grease


The usual apparatus for Titration

The usual apparatus and reagents for qualitative work including the following with all reagents appropriately labelled.

  1. Glass rod
  2. Aqueous ammonia
  3. Dilute hydrochloric acid
  4. Dilute sodium hydroxide solution
  5. Barium chloride solution
  6. Dilute trioxonitrate (V) acid
  7. Silver trioxonitrate (V) solution
  8. Dilute tetraoxosulphate (VI) acid
  9. Glass rod
  10. Filtration apparatus
  11. Spatula
  12. Two boiling tubes
  13. Four test tubes
  14. Wash bottle containing distilled/deionized water
  15. Mathematical table/calculator.


QUESTION 2 - CHEMISTRY PAST QUESTION

Each candidate should be supplied with the following, where ‘n’ is  the candidate’s serial number.

  1. 150cm3 of ethanedioic acid (H2C204) solution in a corked flask or bottled labelled ‘An’. These should all be the same containing 4.50g of H2C204 per dm3 of solution.
  2. 150cm3 of potassium tetraoxomanganate (VII) solution in a corked flask or bottle labelled ‘Bn’. These should all be the same containing 3.16g of KMnO4 per dm3 of solution.
  3. One spatulaful of a uniform mixture of NaCl and ZnCO3 in a specimen bottle labelled ‘Cn’. The components of the mixture should be in the ratio 1:1 by mass.


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