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🔥 2023 WAEC CHEMISTRY PRACTICAL QUESTIONS Paper 📜 is now available
2023 WAEC CHEMISTRY PRACTICAL ANSWERS is out
(1a)
=SPECIMEN A=
(i) Small in size
(ii) Soft shell
(iii) Pale yellowish
=SPECIMEN B=
(i) Large in size
(ii) Hard shell
(iii) Brownish
(1c)
A - Chordata
B - Angiosperm
(1cii)
A -Pisces
B - Aves
C - Mammalia
D - Dicotyledon
(1d)
It helps in reproduction
(1e)
TABULATE
=OBSERVABLE FEATURES=
(i) Air Space
(ii) Yolk
(iii) Albumen
=FUNCTIONS=
(i) Respiration
(ii) It provides nutrition
(iii) It serves as reservoir
(1f)
A - Aquatic
B - Terrestrial
D - Terrestrial
1).
(2a)
F - Dicotyledon
G - Monocotyledon
(2b)
F - It has two seed leaves
G - It has one seed leaf
(2c)
F - Tap root
G - Fibrous root
(2d)
(3ai)
- Orange
- Coconut
- Chilli pepper
L - Hesperidium
M - Drupe
N - Berry
(3aii)
L - Perennial
M - Perennial
N - Annual
(3bi)
TABULATE
=SPECIMEN L=
(i) Round and small in size
(ii) Axile placentation
(iii) Yellowish in colour
(iv) Succulent
=SPECIMEN M=
(i) Large and elongated
(ii) Parietal placentation
(iii) Brownish in colour
(iv) Hard
(3bii)
TABULATE
=SPECIMEN L=
(i) Yellow in colour
(ii) Big in size
=SPECIMEN N=
(i) Reddish in colour
(ii) Small in size
(3c)
(i) They both have axile placentation
(ii) Both have mesocarp
(iii) Both have seed
(3d)
(3e)
(i) Disposal by seed
(ii) Axile
(3f)
It serve as food
Thank you , and gedt wishes =============
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WAEC CHEMISTRY PRACTICAL 2023 SPECIMEN
1. Great care should be taken to ensure that the information given in the items 2 and 3 below does not reach the candidate either directly or indirectly before the examination.
2. In addition to the fittings and reagents normally found in a chemistry laboratory, the following apparatus and materials will be required by each candidate:
(a) One burette of 50 cm3 capacity;
(b) One pipette, either 20 cm3 or 25 cm3. (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) Acidified potassium dichromate solution;
(vi) Aqueous ammonia;
(vii) Lime water;
(viii) Red and blue litmus paper
(ix) Dilute tetraoxosulphate (VI) acid;
(x) Fehlings solution A & B.
(e) Spatula;
(f) Filtration apparatus;
(g) One beaker
(h) One boiling tube;
(i) Four test tubes;
(j) Methyl orange as indicator;
(k) Glass rod;
(l) Wash bottle containing distilled/deionized water;
(m) Burning splint;
(n) Watch glass;
(o) Bunsen burner/source of heat;
(p) Droppers;
(q) Mathematical table/calculator.
3. Each candidate should be supplied with the following, where ‘n’ is the candidiate’s serial number
(a) 150 cm3 of a solution of HCl in a corked flask or bottle labelled ‘An’. These should all be the same containing 8.5 cm3 of concentrated HCl per dm3 of solution.
(b) 150 cm3 of Na2CO3.10 H2O in a corked flask or bottle labelled ‘Bn’. These should all be the same containing 5.0 g of the hydrated salt per dm3 of solution.
(c) One spatulaful of glucose in a specimen bottle labelled ‘Cn’. This must be the same for all candidates.
(d) One spatulaful of zinc oxide powder in a specimen bottle labelled ‘Dn’. This must be same for all candidate.
Pls. Don't joke with any information am dropping here read it carefully and ask your questions here, cos am closing this group soon
2022 WAEC Biology Practical Question And Answers (Specimen)
Structure
Specimen L consists of three layers:
- Epicarp
- Mesocarp
- Endocarp
Economic Importance
- Nutritional Value
- Disease Prevention
- Food and Beverages
- Employment
Mode of Dispersal
- Human Activities
- Animals
- Water
- Wind
Source of Food
The ripe orange fruit is a good source of Vitamin C.
Characteristics
- They have a pleasant aroma.
- The skin color ranges from green to yellow.
- Specimen L can be easily pressed with your thumb.
- The flesh is juicy, pulpy, and segmented, with a sweet and tangy flavor.
- The seeds are small, white, and edible but are usually not consumed.
Diagram: Whole Section of Ripe Orange
WAEC Biology Practical questions and answers:
Question 1:
Using a scalpel, make a transverse incision on a cockroach's abdomen. Observe and label the parts of the digestive system you see.
Answer 1:
The digestive system of a cockroach consists of several parts, including the foregut, midgut, and hindgut. The foregut includes the mouth, esophagus, crop, and proventriculus. The midgut is the region where digestion takes place and includes the gastric caeca and ventriculus. The hindgut includes the ileum, colon, rectum, and anus.
Question 2:
What is the function of the vacuole in a plant cell?
Answer 2:
The vacuole in a plant cell serves several functions, including maintaining turgor pressure, storing waste products, maintaining the pH balance of the cell, and storing nutrients and ions
1ai)
A- lives in stagnant water
B- lives in Leftovers food
(1ai)
A - Stagnant water (aquatic habitat)
B - Decomposing matter(terrestrial habitat)
(1aii)
A- Mosquito(Anopheles).
B- Housefly.
(1aiii)
A - Arthropoda (phylum)
Insecta (class)
B - Arthropoda (phylum)
Insecta (class)
(1b)
Specimen A
(i) It has bristles.
(ii) It has horny jaw.
(iii) It has siphon
Specimen B
(i) It has a hook.
(ii) It has mouth.
(iii) It has spiracles.
(1ci)
In a tabular form
Under A
(i) It has not got a hook
(ii) It has a bristle.
(iii) It has siphon
(iv) It has mouth brush.
Under B
(i) It has a hook
(ii) It doesn't have a bristle.
(iii) It does not have siphon.
(iv) It does not have mouth brush.
(1cii)
(i) They are both segmented organisms.
(ii) They both have mouth.
(iii) Both have thorax
(2a)
A- Fish
B- mammal
E- flowering plant
(2aii)
they are used for respiration
(2aiii)
i)possession of two rows of fine finger like filament
ii)possession of gill rakers
iii)possession of richly supplied blood capillaries
(2b)
i)they both are supplied with capillaries
ii)both of them are used for respiration
(4ai)
Sepals,petals,carpels and stamen
(4aii)
(i) Sepals - 5
(ii) Petals - 5
(iii)Carpels - 1
(iv) Stamen - 10
(4b)
(i) Sex-monoecious
(ii) Presence of both carpels and stamen
(4c)
(i) Bilateral
(ii) It can be cut vertically into two similar halves through one plane
(4d)
K - Insect
L - Wind
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BIOLOGY SPECIMEN:
Group I ( For all candidates)
Specimen A – Fresh/wet preserved mosquito larva in a petri dish containing water.
Specimen B – Fresh/wet preserved maggot in a petri dish containing water.
Specimen C – Gill of fish (freshly procured) in a petri dish containing water.
Specimen D – Lung of a small mammal(freshly preserved).
Specimen E – Dicotyledonous leaf (freshly plucked).
Specimen F – Membranous wing of a cockroach.
Group III (For candidates in Nigeria and the Gambia only)
Specimen K – Flower of pride of Barbados or caesalpinia
Specimen L – Mature Elephant grass or Guinea grass.
Specimen M – Flower of Hibiscus plant.
NB:
(i) All specimens can be provided as group specimens for five(5) to ten(10) candidates.
(ii) All specimens in each group must carry individual labels (Eg A, B, C, D, E and F in Group I)
+It is essential that each candidate should be provided with the following materials;
(i) glass jar cover or petri dish,
(ii) a beaker containing water,
(iii) a pair of forceps,
(iv) a hand of lens/magnifying lens,
(v) scalpel OR razor blade/knife
WAEC 2023 Biology Practical Question and Answers: FAQs
1. When will the WAEC 2023 Biology Practical exam be held?
The WAEC 2023 Biology Practical exam date will be announced by the West African Examinations Council (WAEC) in due time. Candidates are advised to check the official WAEC website or their school notice board for updates.
2. What topics should I study for the WAEC 2023 Biology Practical exam?
Candidates should study topics such as microscope handling, dissection, identification of specimens, and interpretation of experimental data. Candidates are also advised to study their practical notebooks and past questions to get familiar with the exam pattern and format.
3. How can I prepare for the WAEC 2023 Biology Practical exam?
Candidates can prepare for the WAEC 2023 Biology Practical exam by practicing past questions, studying their practical notebooks, and attending practical classes. Candidates should also make use of relevant textbooks, study guides, and instructional materials to aid their preparation.
4. Is it possible to get free WAEC 2023 Biology Practical question and answer materials?
Yes, there are several online platforms that provide free WAEC 2023 Biology Practical question and answer materials. However, candidates should be cautious of fraudulent websites or materials that may not be reliable or accurate. Candidates can verify the authenticity of materials from reputable sources or consult their teachers or mentors for guidance.
5. What are some tips for success in the WAEC 2023 Biology Practical exam?
Some tips for success in the WAEC 2023 Biology Practical exam include reading and understanding instructions carefully, practicing with past questions, managing time effectively, and answering all questions to the best of your ability. Candidates should also ensure they have a good understanding of the basic concepts and principles of Biology, and seek help or clarification on areas they find challenging.
What is the format of the WAEC Biology Practical exam?
The WAEC Biology Practical exam consists of a set of practical tasks that test candidates' understanding of the practical aspects of Biology. Candidates are required to carry out the tasks in the laboratory and record their observations.
How can I prepare for the WAEC Biology Practical exam?
To prepare for the WAEC Biology Practical exam, you need to study the practical aspects of Biology and practice carrying out different experiments in the laboratory. You can also use past questions and answers to familiarize yourself with the format of the exam.
Is it possible to pass the WAEC Biology Practical exam without practical experience?
It is possible to pass the WAEC Biology Practical exam without practical experience, but practical experience is highly recommended as it helps to understand the concepts better.
