2022 JUPEB/IJMB CHEMISTRY INSTRUCTIONS TO SCHOOLS, COLLEGES AND POLYTECHNICS CHEMISTRY PAPER III (ALTERNATIVE A)

INTERIM JOINT MATRICULATION BOARD EXAMINATION 2022

INSTRUCTIONS TO SCHOOLS, COLLEGES AND POLYTECHNICS CHEMISTRY PAPER III (ALTERNATIVE A)

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1a). Solution A: Prepare 0.25 mole dm’ aqueous solution of Methanoic Acid (HCOOH). Make
available for each student about 50 em of the solution.

b). Solution B: Prepare 0.15 mole dm’3 aqueous solution of Potassium Hydroxide(KOH). Make
available for each student about 100 cm’ of the solution.

c) . Prepare methyl orange and phenolphthalein indicators for acid-base titrations.

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2. Each student should be provided with the following samples (about Ig each) appropriately labeled as SAMPLE A1 and SAMPLE A2.

THESE SHOULD BE THE CONTENT OF EACH SAMPLE AND THIS INFORMATION SHOULD NOT BE DISCLOSED TO THE CANDIDATES.

SAMPLE 1= BENZOIC ACID
SAMPLE A2= COPPER(II)TRIOXONTTRATE (V)

Ensure that all necessary test reagents for inorganic and organic qualitative analysis are provided on the laboratory benches

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