WAEC SPECIMEN 2022/2023 PRACTICALS SOLUTIONS - CLICK HERE
BIOLOGY PRACTICAL SPECIMEN:
Specimen A – Weevil-damaged bean seed
Specimen B – Viable bean seed
Specimen C – Dried maize grain soaked in water overnight
Specimen D – Soldier termite (dead)
Specimen E – Honeybee (dead)
Specimen F – Muddy water (in a test tube)
Specimen G – Lower jaw of a herbivore with teeth intact
Specimen H – Head of domestic fowl (complete)
Specimen J – Quill feather
Specimen K – Leg of domestic fowl (complete) Specimen L – Head of duck complete)
Specimen M – Leg of duck (complete)
NOTE: All specimens can be provided as group specimens for five (5) to ten (10) candidates
All specimens in each group must carry individual labels
(eg A, B, C, D, E, F and G in Group I). It is essential that each candidate should be provided with the following materials:
(i) glass jar cover Petri dish;
(ii) white tiles.
(iv) a hand lens/magnifying lens
(v) scalpel/razor blade/knife,
(vi) a pair of forceps
(vii) lodine solution.
AGRIC SCIENCE PRACTICAL SPECIMEN:
Specimen A – Feeding trough
Specimen B – Burdizzo (real/picture/diagram)
Specimen C – Neck/collar tag
Specimen D – Spanner
Specimen E – Kerosine lamp
Specimen F – Inorganic fertilizer (superphosphate) (labelled)
Specimen G – Compost (labelled)
Specimen H – Farmyard manure (labelled)
Specimen I – Groundnut seeds (unshelled)
Specimen J – Cotton lint
Specimen K – Oil palm fruit
Specimen L – Rubber latex (labelled)
Specimen M – Crop (Poultry)
Specimen N – Gizzard (longitudinal section with its contents)
Specimen O – Rumen
Specimen P – Small intestine
Specimen Q – Liver
ANIMAL HUSBANDRY PRACTICAL SPECIMEN:
Specimen A – Fresh centrosema plant
Specimen B – Guinea grass (fresh)
Specimen C – Palm oil (labelled)
Specimen D – Hoof
Specimen E – Horn
Specimen F – Feather
Specimen G – Common salt (labelled)
Specimen H – Maize grains
Specimen I – Powdered milk
Specimen J: Groundnut cake
Specimen K – Water (labelled)
Specimen L – Restraining rope.
CHEMISTRY PRACTICAL SPECIMEN:
1. Great care should be taken to ensure that the information given in items 2 and 3 below does not reach the candidates either directly or indirectly before the examination.
2. In addition to the fittings and reagents normally contained in a chemistry laboratory, the following apparatus and materials will be required by each candidate.
(a) one burette of 50cm³ capacity.
(b) 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.
(c) the usual apparatus for titration.
(d) the usual apparatus and reagents for qualitative work. Including the following with all reagents appropriately labelled.
(i) dilute sodium hydroxide solution.
(ii) dilute hydrochloric acid.
(iii) dilute trioxonitrate(v) acid
(iv) silver trioxonitrate(v) solution.
(v) barium chloride solution.
(vi) aqueous ammonia.
(vii) lime water.
(viii) red and blue litmus paper.
(ix) dilute tetraoxosulphate(vi) acid.
(f) filtration apparatus.
(g) one beaker
(h) one boiling tube
(i) four test tubes.
(j) starch solution as indicator.
(k) mathematical table/calculator
(l) wash bottle containing distilled/deionized water.
(3) Each candidate should be supplied with the following where n is the candidate’s serial number.
(a) 150cm³ of sodium trioxosulphur sulphate(vi) solution in a corked flask or bottle, labelled “An”. These should all be the same containing 6.0g of Na2S2O3 per dm³ of solution.
(b) 150cm³ of iodine in potassium iodide solution in a corked flask or bottle labelled “Bn”. These should all be the same containing 2.5g of I2 and 1.67g of KI per dm³ of solution.
(c) One spatulafull of a uniform mixture of NaCl and CuCO3 in a specimen bottle labelled “Cn”. The components of the mixture should be in the ratio 1:2 by mass
4. In all cases, more materials may be issued if required.
5. The actual concentrations of A and B must be stated on the Supervisor’s Report form. The candidates will assume that the concentrations are exactly as stated in the question paper.
PHYSICS PRACTICAL SPECIMEN:
(1) Pendulum Bob
(2) Retort stand and clamp
(5) Metre Rule
(6) Split cork.
(1) Ray box with illuminated objects (cross wire)
(2) Convex lens(f = 15cm)
(4) Metre rule.
(5) Lens Holder.
(2)Two dry cells(2×1.5v)
(4) Resistor labeled R = 2Π
(6) Resistance box labelled R
(7) Seven connecting wires.
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