NECO Chemistry Practical Specimen Questions and Answers 2022 is now release for the May/June 2022. NECO Chemistry Practical Specimen Theory and Objective Answers (100%legit) Chemistry Practical Specimen Essay verified Free (Expo) for National Examination Council. NECO Chemistry Practical Specimen Questions For you to have good NECO result in Chemistry Practical Specimen as well as repeated questions for free in this post. You will also understand how NECO Chemistry Practical Specimen questions are set and how to answer them. The National Examination Council is an examination body in Nigeria that conducts the Senior Secondary Certificate Examination and the General Certificate in Education in June/July and November/December respectively.
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NECO Chemistry Practical Specimen 2022
INSTRUCTION(S) TO SCHOOL SCHOOL FOR NECO 2022 Chemistry PRACTICAL SPECIMEN
Great care should be taken to ensure that the information given below does not reach candidates either directly or indirectly before the examination.
In addition to the usual apparatus in a Physics laboratory, each candidates will require in general; Mathematical Tables, Graph Paper and Geometrical Instruments. For question 1,2,3 the apparatus listed below are required.
- -G – Clamp.
- -2 Meter Rules.
- -Optical Pin.
- -Mass Hanger of 50g each.
- -Retort Stand.
- -Plane Mirror.
- -Four Optical Pins.
- -Four thumb pins.
- -Plain Sheets.
- -Drawing Board.
- -Mirror Holder.
- -Resistant Box.
- -Zero-centre Galvanometer.
- -2V Accumulator or 2 x 1.5V Dry Leclanche Cell.
- -Plug Key.
- -Metre Bridge.
- -2Ω Standard Resistor Covered and Labelled x.
- -1Ω Resistor.
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CHEMISTRY PRACTICAL SPECIMEN 2022
INSTRUCTION(S) TO SCHOOL
Great care should be taken to ensure that the information given below does not reach the candidates either directly or indirectly before the examination.
In addition to the apparatus and reagents expected to be available in a Secondary School Chemistry Laboratory, each candidates will require the following;
(a) One Burette (50cm3).
(b) One Pipette (20cm3/25cm3), however all candidates in a centre must use pipette of the same volume.
(c) The usual apparatus and reagents for qualitative work including;
(i) Dilute Sodium Hydroxide Solution.
(ii) Dilute Ammonia Solution.
(iii) Dilute Hydrochloric Acid.
(iv) Distilled Water.
(v) Red and Blue Litmus Paper.
(vi) Barium Chloride Solution.
(viii) Calcium Hydroxide Solution.
(ix) Methyl Orange.
(x) One Boiling Tube.
(xi) Five Test Tubes.
(xii) Filtration Apparatus.
(xiii) Source of Heat.
3. Each candidates should be supplied with the following labeled An, Bn, Xn and Yn; where ‘n’ is the candidate’s serial number.
(a) 150cm3 of trioxonitrate(v)acid solution in a bottle labelled “An”. The acid solution which should be the same for all candidates will contain 9.50cm3 of concentrated trioxonitrate(v)acid per dm3 of solution.
(b) 150cm3 of sodium(iv) solution in a bottle lableled “Bn”. The solution which should be the same for all candidates will contain 4.20g of sodium trioxocabonate(iv) per dm3 of the solution.
(c) One Spatulaful of Zinc(II)trioxocabonate(iv) salt in a specimen bottle labelled “Xn”.
(d) One Spatulaful of Aluminium chloride salt in a specimen bottle labelled “Yn”.
4. In all cases, more materials may be given if required.
5. The actual concentrations of An and Bn must be stated by the Subject Teacher’s report form, while the candidates should make use of the concentrations stated in the question paper.
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