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#Post#: 39--------------------------------------------------
All 2012 waec exam expo
By: Inyavic Date: April 8, 2012, 12:12 pm
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CHEMISTRY PRACTICAL
QUESTIONS
Question1) burette of 50cm
capacity pipette, either 20cm or 25
(using d usual apparatus for titratione) Reagents for
qualitative work
(i) red and blue litmus paper;
(ii)aqueous ammonia
(iii) dilute hydrochloric acid (iv)dilute
sodium hydroxide solution
(v)barium chloride solution (vi)dilute trioxonitrate
(V) acid (vii)silver
trioxonitrate
(V) solution [AgNO3]
(viii)lime water methyl orange
indicator Question 2) A. 150cm of
tetraoxosulphate
(VI) solution in a corked flask or
bottle,labelled 'A'
containing 2.8cm of concentrated
H2SO4 (about 98% w/w)per dm of solution. B. 150cm of NaOH
solution, in a corked flask or bottle
labelled 'B' containing 3.9g of NaOH
per dm of solution. C. 10cm
of (NH4)2SO4 solution in a bottle
labelled 'C' containing 66g of (NH4)2SO4 per dm of solution. D.
10cm of FeCl3 solution in a bottle
labelled D containing 40g of FeCl3 per
dm of solution.
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#Post#: 40--------------------------------------------------
Re: All 2012 waec exam expo
By: Inyavic Date: April 8, 2012, 12:18 pm
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BIOLOGY
SPECIMENS A = AETUS PLANT
B = COCKROACH
C = RHIZOME OF GINGER
D = CARROT
F =GIZZARD WINGS
G = SOLDIER TERMITES
I = COCK TAIL
J = SNAKE
K = PLANT SEEDS
H = ???
======================== 2012
BIOLOGY PRATICAL QUESIONS [WAEC]
1a:
Identify the specimens in i & ii above.
1b: Identify the parts labeled A-0 in diagram
ii & iv above
1c: State two differences
btw specimen iii nd iv
1d: State two important of specimen iii and iv
2a: Identify the specimen above . 2b: Identify the parts labeled
A-G 2c: Give three types of Cockroach. 2d: State two xteristics
of the specimen.
3a: what is the aim of the experimental setup above?
3b: Name the part labeled A-B
3c: Mention any other material apart from Lizard that can be
used to perform the experiment.
#Post#: 41--------------------------------------------------
Re: All 2012 waec exam expo
By: Inyavic Date: April 8, 2012, 12:20 pm
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AGRIC
List Specimen
A-organic manure
B-inorganic manure
C-sandy soil
D-clay soil E-
crucible
F-bursen burner
G-weighing balance
H-cutlass
I-hoe J-shear
K-rake L-watering can
M-shovel
N-groundnut seed
Q-aphids
R-hurricane latern S-chicken egg T-tick
U-pig
Hello My Dear Waec Candidates! i
will
Provide You Direct answers to
these Speciments Right here soon, Not even
likely but clear questions /
answers,
Go tell your Friends thanx. More
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#Post#: 42--------------------------------------------------
Re: All 2012 waec exam expo
By: Inyavic Date: April 8, 2012, 12:22 pm
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BIOLOGY SPACIMENT (A) GARDEN EGG a(i)=> Make a label diagram 8
or
10cm long of d longitudina
section of specimen A fully
labelled.
(ii)=> what type of fruit is
specimen A. (iii)=> State two other examples
of the type of fruit to which
specimen A belong.
(iv)=> Is specimen A a true fruit
or a false fruit?
(v)=> Give one reason for your answer in (a)(iv) aboue.
(vi)=> State the food classes
present in specimen A.
Answer a(i) => Draw and labell (ii) Fruit type: Berry
(iii) Examples:
tomato,orange,pepper,gauava,
Banana
(iv) True fruit
(v) It is developed from fertilized ovary.
Classes of Food in Garden egg;
Vitamins, mineral salts;
Carbohydrates; water SPACEMENT (B) TRIDAX FRUIT 1. It is a
cypsela.
2. It is inferior ovary
3. Calyx form a hairy parachut
called pappus
4. It is gamosepalous
5. It is a dry, indehiscent fruit. 6. It is dirsperse by wind.
7. The flower is made up of white
ray florets and yellow discs
Habitat . Terrestrial
Economic Importance.
1. Serve as weeds 2. Use for feeding animals (eg
Rabbits) SPACIMENT (C) GRAIN WEEVIL Phylum and Class with
Reasons. Reasons Phylum; Arthropoda- segmented
body, chitinous exoskeleton
jointed appendages.
Reasons CLASS; INSECTA--Three body
divisions- head, thorax and
abdomen, three pairs of jointed
legs; Two pairs of wings.
Crops infested by the specimen (weevil) are;
Rico,maizo;millet;guinea corn;
Adaptive features of Weevil;
(1) Long Proboscis / Rostrum for
burrowing into the grain and for
feeding (2) Hard forewings / elytron, to
protect hind or inner
membranous wing and the soft
body.
(3) Small size; that will enable it
penetrate the grain; (4) Membranous wings; for
flying.
Preventive Measures - Proper drying of grains;
- Use of pesticiders /insecticides
- Store grain in a dry place
- use of irradiation (i.e treat with
Gamma radiation in to presen it)
- Avoid mixing old stock of grain with new grains
-Store in air- tight container.
Other Pest of Crops - Rat
- Mice
- Squirrel
- Rabbit
#Post#: 74--------------------------------------------------
Re: All 2012 waec exam expo
By: Inyavic Date: April 10, 2012, 3:18 am
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Govt objective 1-10 D, A, B, B, E, C, D, B, D, A 11-20 B, A, D,
A, D, E, A, A, C, B 21-30 A, D, A, C, C, D, A, D, E, C 31-40 D,
A, E, A, A, C, E, A, D, A 41-50 A, A, B, D, A, D, A, B, E, C.
Theory1)Explain government as an institution of the state
(1b)State two reasons for the adoption of Federal system of
government in your country (2)What is Democracy system of
government? (2b)State two problems of Democratic government
(3)Explain Fully the reasons for military interventions in your
country (4)What is Presure group? (4b) State 5 difference
between Presure group and political party (5)State four ways of
government revenue (6)Explain the factors that brought about
success in political party in an Election (What is constitution
(8b)Mention 2 merits of Written constitution
#Post#: 77--------------------------------------------------
Re: All 2012 waec exam expo
By: Inyavic Date: April 10, 2012, 6:10 am
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More loadiog
#Post#: 129--------------------------------------------------
Re: All 2012 waec exam expo
By: lexykul Date: April 11, 2012, 9:26 am
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pls, Biology theory and objectives.
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