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INTERIM JOINT MATRICULATION BOARD HAS RELEASED IT SPECIMEN FOR 2023 EXAMINATION OF VARIOUS COLLEGES
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2023 IJMB SPECIMEN
2023 CHEMISTRY PRACTICAL-ALTERNATIVE A & B
IJMB 2023 CHEMISTRY PAPER II (ALTERNATIVE A) PRACTICAL INSTRUCTIONS TO SCHOOLS
(1a) Prepare solution A by quantitatively transferring 4.8 g of potassium tetraoxomanganate(VIl)
KMnO₄, to 2 dm³ volumetrie flask containing about 1 dm³ distilled water, shake the result solution and make it up to mark with distilled water. Store the solution in ambered-coloured (dark brown) bottle. Give each student about 90 cm³ of the solution.
(b) Prepare solution B by transferring an accurately weighed quantity of 6.3 g of hydrated oxalic acid (ethanedioc acid dihydrate), H₂C₂O₄.2H₂O to 2 dm³ volumetric flask containing about 1 dm³ distilled water. Shake the solution to dissolve the compound and make it up to mark with distilled water. Give each student about 100 cm³ of the solution.
(c) Prepare solution C by transferring 220 cm³ of concentrated tetraoxosulphate (VI) acid, H₂SO (98 % w/w, specific gravity 1.80) in to 2 dm³ volumetric flask containing about 1 dm³ distilled water. Alow the solution to cool and gradually make it up to mark with distilled water. Give each student about 70 cm³ of the solution.
(d) A measuring cylinder in addition to other materials for volumetric analysis.
2. Each student should be provided with the following samples (about 1g each) appropriately labelled as indicated
as indicated
SAMPLE A1 = BARIUM CHLORIDE
SAMPLE A2 = BENZALDEHYDE
SAMPLE A3 = PHENOL
Ensure that all necessary test reagents for inorganic and organic qualitative analyses are provided in the laboratory benches.
THESE SHOULD BE THE CONTENT OF EACH SAMPLE AND THIS INFORMATION SHOULD NOT BE DISCLOSED TO CANDIDATES.
IJMB 2023 CHEMISTRY PAPER III (ALTERNATIVE B) PRACTICAL INSTRUCTIONS TO SCHOOLS
(1a) Prepare solution D by transferring an accurately weighed 6.32g of potassium tetraoxomanganate (VII), KMnO₄ to 2 dm³ volumetric flask containing about 1 dm³ distilled water. Shake the resulting solution and make it up to mark with distilled water. Store the solution in ambered-coloured (dark brown) bottle. Give each student about 90 cm³ of the solution.
(b) Prepare solution E by weighing an accurately quantity of 3.78 g of hydrated oxalic acid (ethanedioc acid dihydrate), H₂C₂O₄.2H₂O to 2 dm³ volumetric flask containing about 1 dm³ distilled water. Shake the solution to dissolve the compound and make it up to mark with distilled water. Give each student about 100 cm³ of the solution.
(c) Prepare solution F by transferring 220 cm³ of concentrated tetraoxosulphate (VI) acid, H₂SO₄. (98% w/w, specific gravity 1.80) in to 2 dm³ volumetric flask containing about 1 dm³ distilled water. Allow the solution to cool and gradually make it up to mark with distilled water. Give each student about 70 cm³ of the solution.
2. Each student should be provided with the following samples (about 1 g each) appropriately labelled as indicated
SAMPLE B1 = COPPER(II) CHLORIDE
SAMPLE B2 = HEXANOL
SAMPLE B3 = p-CHLOROBENZALDEHYDE
Ensure that all necessary test reagents for inorganic and organic qualitative analyses are provided the laboratory benches.
THESE SHOULD BE THE CONTENT OF EACH SAMPLE AND THIS INFORMATION SHOULD NOT BE DISCLOSED TO CANDIDATES.
2023 PHYSICS PRACTICAL ALTERNATIVE A
IJMB 2023 PHYSICS PAPER III (ALTERNATIVE A) PRACTICAL INSTRUCTIONS TO SCHOOLS
QUESTION 2A
i. Meter rule,
ii. knife edge,
iii. Standard slotted masses (e.g 2, 5, 10, 50g etc).
iv. A piece of small stone labelled as M₀, such that, (40g ≤ M₀ ≤ 150g).
QUESTION 3A
i. D.c battery of emf 4V or 4.5V source.
ii. Variable resistor/ Rheostat.
iii. Voltmeter at least (0-5) V.
iv. Ammeter at least (0-2) A.
v. A 2Ω standard resistor labelled as X.
vi. Several Connecting wires.
vii. Key or switch.
2023 BIOLOGY PRACTICAL-ALTERNATIVE A
IJMB 2023 BIOLOGY PAPER III (ALTERNATIVE A) PRACTICAL INSTRUCTIONS TO SCHOOLS
1. SPECIMEN A – Provided as a figure on the Question Paper.
2. SPECIMEN B – Common Housefly (One for each candidate)
3. SPECIMEN C- Household Spider (One for each candidate)
4. SPECIMEN D – White Termite (One for each candidate)
5. SPECIMEN E – Toad or Frog (One for each candidate)
6. SPECIMEN F – Orange fruit
7. SPECIMEN G – pea pod
8. SPECIMEN H – okra fruit
9. SPECIMEN I – banana fruit
10. SPECIMEN J – Pineapple
11. SPECIMEN K – maize grain
12. Hand lens for each candidate
13. Dissecting set for each candidate
2023 GEOLOGY PRACTICAL-ALTERNATIVE A
IJMB 2023 GEOLOGY PAPER III (ALTERNATIVE A) PRACTICAL INSTRUCTIONS TO SCHOOLS
QUESTION 2:
a₁ ———— BARYTES {BARITE}
a₂ ———— BIOTITE
a₃ ———— PYRITE
QUESTION 3:
b₁ ———— QUARTZITE
b₂ ———— RhYOLITE
b₃ ———— SHALE
QUESTION 4:
c₁ ———— TETRAGONAL
c₂ ———— MONOCLINIC
c₃ ———— CUBIC/ISOMETRIC
QUESTION 5:
d₁ ———— IRREGULAR ECHINOID {LINTHIA SUDANENS}
d₂ ———— TRILOBITE
d₃ ———— NAUTILOID
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