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Plz I need past question paper of post ume of university of ilorin (Chemical Engineering department) plzzzzzzzzzz

PHYSICS PRACTICAL SOLUTION:
1. Suspend a meter rule
horizontally on the knife edge
supplied. Adjust the meter rule
carefully until it settler
horizontally.
Repeat and record the point of
balance G of the meter rule.
Keep the knife edge at the point
G throughout the experiment.
Suspend the object labelled Q at
the 20cm mark of the meter rule.
On the other side of G, suspend
the mass M= 10g and adjust its
position until the meter rule
settler horizontally.
Read off the position R of the
mass M on the meter rule.
Record the distance y between G
and R. Also, record the value of
M.
Repeat the procedure keeping the
knife edge at G and the object Q
at the 20cm mark but using the
masses M, 10,20,30 and 40g On
the other side of G. In each case,
record the distance y and
corresponding value of M.
Determine the value of 1/y and
tabulate your readings.
Plot a graph of m against 1/y.
Determine the the slope of the
graph. Evaluate s/x.
State two Precautions.
Explain what is meant by the
center of gravity of a body.
State how this is related to the
stability of the body.
SOLUTION:
TABLE:
------------------------------------------
S/N|M(g)|y(cm)|1/y(cm^-1)
1. |10.00 |56.40 |0.0189
2. |20.00 |52.68 |0.019
3. |30.00 |35.12 |0.028
4. |40.00 |26.34 |0.038
5. |50.00 |21.07 |0.047
-----------------------------------------
PRECAUTIONS:
1. I ensured the reading was
taking when my meter rule is
balanced.
2. I avoided Parallex error.
Bi) The center of gravity of a
body is the point at which the
resultant weight of the body
appears to act.
QUESTION 2.
Using the diagram as a guide,
carry out the following
instructions.
(i) Place the pin,O, horizontally
inside the cylinder provided.
Pour some water on the pin in the
cylinder such that the length of
the water column, l = SO =
10.0cm. Where S represent the
water meniscus.
(ii) Insert another pin P in the
cork help by the boss of the
retort stand.
(iii) Adjust the position of P
vertically upward or O formed by
refraction at S.
(iv) Read and Record the distance
h = PO.
(v) Repeat the procedure for four
other values of I = 15, 20, 25
and 30cm.
(vi) In each case, measure and
record the corresponding value of
h. Tabulate your readings (vii).
Plot a graph of h on the vertical
axis against I on the horizontal
axis.
(viii)Determine the slope S of the
graph.
(ix) Evaluate (a)K1= I-S (b)
K2=1/k
(x) State two precautions taken to
ensure accurate result.
(Bi) Explain total Internal
reflection of light.
(ii) A rectangular glass prism of
thickness 6cm and refractive
index 1.5 is placed on the page of
a book. The prints on the book
are viewed vertically downwards
from above.
Determine the apparent upward
displacement of this prints.
SOLUTION:
TABLE OF VALUES:
S/N| Icm^3| h(cm3)
1. | 10.00 | 7.50
2. | 15.00 | 11.25
3. | 20.00 | 15.00
4. | 25.00 | 18.75
5. | 30.00 | 22.50
(x) PRECAUTIONS
1. The lower level of meniscus of
water is read at eye level.
2. I avoided error due to
parallex.
3. Zero error of meter rule is
noted.
(Bi) Total internal reflection
occurs when light travel from a
dense medium to a less dense
medium such that angle of
incidence is greater than critical
angle.
(ii) Let the apparent upward
displacement of points b t, real
depth, D = 6cm. Therefore
apparent depth = D - t = 6 - t
Refractive index aÑg = 1.5 =
Realdepth/Apparent depth.
1.5=6/6-t
(6-t)1.5=6cm
9-1.5t=6
-1.5t=6-9
t=6 - 9/2.0cm
R.I = R.D/A.D
.A.D = R.D/R.I = 6/1.5 = 4cm.
Displacement = Realdepth -
Apparent depth = 6-4=2.0cm


AGRIC PRACTICAL
SOLUTION
SPECIMEN A:
Go To Hell:
it is made of flat blade. The
blade is curved with sharp cutting
inner edge and a wooden handle.
The tool is held with one hand
when being used.
USES.
For harvesting cocoa, rice, okro.
For cutting grasses
for cutting palm fronds and
bunches
for praning of unwanted branches
=====================
SPECIMEN B
THIS is a common basic farm tool
used by most nigerian farmers.
The nigerian hoe has a curved
metal blade attached to a short
wooden handle. The tool is
normally used in a standing or
bending position with two hands
applied
USES:
For making ridges, for cutting
plants roots, for effective turning
up of the soil, for weeding, for
planting yam, coco yam.
=====================
SPECIMEN C
USES:
To store eggs, to transport eggs,
for packing eggs.
TYPES OF EGG TRAY
Paper and plastic egg tray.
=====================
SPECIMEN D
Feeding trough is one of the
feeding equipment for animals.
Feeding trough is of two types and
they are wooden and aluminium
feeding trough.
=====================
SPECIMEN F
The arrow is made of thin rod. It
has pointed tip and a ring-like loop
for easy handling. It is about
30cm long with one end.
=====================
SPECIMEN H
Termite is a pest which causes
damage to crops.
CROPS AFFECTED
oil palm, cassava, sugar, yam etc.
NATURE OF DAMAGE TO CROPS
They destroy roots and seedlings
of plants especially when young.
PREVENTION AND CONTROL
MEASURE
Spray with aldrex 40 water crops
regularly in the dry season.
=====================
SPECIMEN K
Poultry droppings are faeces from
birds. The faeces serves as
fertilizer(guano). Poultry manure
is obtained from the birds
dropping and it is very rich in
plant nutrients.
=====================
SPECIMEN M
CLASS- Vegetables
SPECIMEN N
It is a true frult and it is an
hesperidium.
MODE OF DISPERSAL
It is dispersed by man, wind and
water.
=====================
SPECIMEN O
BOTANICAL NAME- Manihort
esculenta.
USES:
It is processed into starch for
industrial use, for making cassava
flour, for making alcohol.
FEATURES:
it stored food, its roots are large
and swollen.
=====================
SPECIMEN P
FEATURES:
Short conical underground stem,
fleshy storage leaves, terminan
and axillary bud, adventitious
root.
USES
it is used as spices for food
eaten by man.
=====================
SPECIMEN S
the skin is the outer covering of
the body.
Functions:
it regulates the body
temperature. This is carried out
with the aid of the air. The sweet
glands and the fat deposits.
It serves as a protective covering
for the animals.
It helps in excretion by means of
the sweet glands.
It receives stimuli(heat, cold, pain
and touch) by means of
nervendings and transmitting them
to the central nervous system by
means of nerve.
A vertical section of the skine of
a mammal shows that it is made up
of two main layers. The outer
layer known as the epidermis, and
the inner layer, the dermis.
Transversing the epidermis are
the hairs and sweet glands which
arise deep down in the skin, but
which really form part of the
epidermis. The hairs prevent loss
of body heat by trapping a layer
of still air.
The sweet gland arise as a coiled


- BIOLOGY PRACTICAL
SOLUTIONS
A - Rat
B - Earthworm
C - Spider
D -Snail
E - Weevil
F - Margarine
G - Glucose solution
H - Sucrose or Maltose solution I
- Egg albumen
J - Molar tooth
K - Incissors
L - Canine
M - Dry pod of pride of barbados
N - Guava fruit
O - Orange fruit
P - Mango fruit
Q - Dry okrofruit
SOLUTIONS:
R - Benedict solution.
S - Iodine solution
T - Millon's solution
U - Dilute HCl
======================
Kingdom, Phylum and Class of
Specimen ABCDE
A-Animalia, Vertebrate,
Mammalia.
B-Animalia, Annelida, Oligochaeta
C-Animalia, Arthropoda,
Oligochaeta
D-Animalia, Mollusca, Gasctropoda
E-Animalia, Arthropoda, Insecta
======================
Features of Specimen ABCDE
A(RAT):
1.Body covers with hair/fur
2.Has a pair of pinna(external
ear)
3.Has two pairs of pentadactyl
limbs
4.Has long furless, scaly tail
B(Earthworm):
1.It is segmented
2.Has chitallium
3.Has cheata/setae
4.Has two openings i.e mouth and
anus
5.Has moist skin
C(spider):
1.Body is divided into two i.e
cephalothorax
2.Has four pairs of leg
3.Has a pair of chelicerae
D(snail):
1.Body covered with shell
2.Has a pair of upper and a pair
of lower tentacle
3.Has foot
4.Has anus
5.Has genital pore
E(Weevil):
1.Body divided into three i.e head
thorax, abdomen.
2.Has 3 pairs of walking legs
3.Has a pair of antenna
4.Has compound eye
======================
DIFFERENCES BETWEEN C AND
E
:
C(SPIDER):
1. Body divided into two i.e
cephalothorax and abdomen.
2. Has four pairs of legs.
3. No antenna
E(weevil):
1. Body divided into 3 i.e Head,
thorax and abdomen.
2. Has 3 pais of leg.
3. Has a pair of antenna.
======================
Economic importance of specimen
ABCDE
A(rat):
1. Pest of crops.
2.source of human protein.
3.vector of disease (fever)
B(Earthworm):
1. Enrich the soil.
2. Form soil cast.
3. Serves as food for fish, bird,
etc.
C(Spider):
1. Vector of disease.
2. Biological control of insect.
3. destroys hmes material
D(snail):
1. Vector of disease.
2. Source of animal protein.
3. Shell used in dye making
E(weevil):
1. Pest of crops.
2. Food for birds.
======================
TEST FOR CARBOHYDRATE:
1. Solution G + solution R + Heat
then allow to cool (Reducing sugar
test). Observation: Red/Orange
precipitate. Observation: glucose
is present.
2. SOLUTION G + 3 drops of S.
Blue/Black colur Precipitate.
Observation: reducing sugar is
present.
3.SOLUTION H + drops of u +
solution R + heat then allow to
cool (test for non-reducing sugar).
Observation: Brick red colour.
Conclusion: reducing sugar is
present.
======================
TEST FOR FATS AND OIL:
1.0Small amount of F + filte
paper (paper marked test).
Observation: transluscent spot.
Conclusion: oil or fat is present.
======================
TEST FOR PROTEIN:
1.Millon’s test: solution I +
solution I + heat:
Observation: brick red colour.
Conclusion: protein is present.
======================
FUNCTION OF SPECIMEN J:
For crushing and breaking food/
grinding
======================
FUNCTION OF SPECIMEN k:
For cutting food
======================
FUNCTION OF SPECIMEN l:
For cutting and tearing of food
======================
FEATURES OF SPECIMEN J K L
J: cusped, has oneroot
K: (i.) Rectangular, flat, chisel-
like.
(ii). Has one root.
L: (i.) long, strong, curve and
sharp pointed,
(ii). Has one root.
======================
EXAMPLES OF ANIMALS WHRE
SPECIME JKL CAN BE OBTAINED
======================
FEATURES OF M N O P Q:
FRUIT GROUP, NATURE, NO OF
SEED, PLACENTATION
1. M: Legume, simple, Dry
Dehiscent, many, pariental.
2. N: Berry, simple, succulent,
many, pariental,
3. O: Berry, simple, succulent,
axile.
4. P: drupe, simple,succulent,one,
basal
5. Q: capsule, simple, dry
dehiscent, many, central
======================
DIFFERENCES BETWEEN O AND
P
O: many seeds present, fused
pericarp, edible endocarp
P(mango fruit): only one seed
present, separate pericarp,
endocarp not edible.
======================
CLASSES OF FOOD OF A, D, I,
N, O, P, Q
A: protein: repairs wornout
tissues, produce enzymes
D, I,: protein repairs wornout
tissues, produce enzymes
N,O,P,Q: vitamins: protects body
against disease.
======================
DRAWINGS: LEARN HOW TO
LABEL AND DRAW
======================
1.Rat-terrestial habitat
2.Earthworm-moist soil
3.Snail-terrestial habitat
4.Spider
5.Weevil
6.Mango(longitudinal section)
7.Orange(transverse section).



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SALT ANALYSIS:
2. (a) TEST:
Put all of C in a boiling tube and
cee about
5cm3 of distilled water. Divide the
resulting
solution into two portions.
OBSERVATION:
White residue partially dissolved.
INFERENCE:
(i) *TEST:
To the first portion, add about
2cm3 of BaCl2
solution.
*OBSERVATION:
White ppt.
*INFERENCE: SO4^2-,CO3^2-,
SO3^2-
Suspected.
TEST:
The dilute HCl in excess
OBSERVATION:
INFERENCE: Cl^- Present.
=======================
(ii) TEST:
To the second portion of the
solution, add two
drops of phenolphthalein
indicator.
*OBSERVATION:
Pink colouration observed.
*INFERENCE:
CO3^2-,SO3^2- Suspected.
=======================
(b) TEST:
Dissolve all of D in a boiling tube
with about
5cm3 of distilled water. Divide the
resulting
solution into two equal parts.
*OBSERVATION:
Partially soluble in water.
*INFERENCE: Ca^2 , Pb^2 , Zn^2
Suspected.
(i) TEST:
To the first portion, add ammonia
solution.
*OBSERVATION:
White gelatineous ppt
*INFERENCE:
Cl^- present.
=======================
(ii) TEST:
To the second portion, add NaOH
solution in
Drop.
*OBSERVATION:
White ppt formed.
*INFERENCE:
Ca^2 present.
TEST:
Then in excess.
OBSERVATION:
Insoluble in excess.
INFERENCE:
Ca^2 present.
=======================
(NOTE THAT THE ABOVE
SOLUTION WILL BE
IN A TABULAR FORM i.e
TEST|INFERENCE|OBSERVATION)

As edited by mali.

chemistry

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(6)Physical weathering is caused by
physical interractions. Sand blown
by
the wind scouring a surface, or
water
causing swelling of underlying
structure or weakening a material
(or
shattering and cracking due to
water
within something freezing and thus
expanding)while Chemical
weathering
is caused by chemical reaction with
the surface. For example, acid rain
eroding the surface of a marble
statue,
or oxygen in the air causing
oxidation
of the surface layers of a painting,
or
the unltraviolet of sunlight
breaking
down the chemical pigments of
paint
(7a)(i)The many rivers, streams or
their
tributaries diverge from a central
elevated highlans and flow away
to
different directions
(ii) in this pattern, there is irregular
branching of the tributaries or
streams
in many directions like brancehes
of a
tree
(iii) the streams or tributaries flow
almost parallel to each other inline
with the nature of the rock
materials of
the soil.
(7b) (I).climatic and hydrololgy
conditions(ii.) the nature of
vegetation
(8a)-bush burning: this exposes the
soil to the erosion-excessive,
rainfall/
wind:this increases the rate of soil
erosion,shifting cultivation: this
exposes the soil to erosion,
absence of
vegetation cover:this exposes the
soil
surface to severe erosion
(8b) (i)Afforestation: this is the
planting of trees to control
planting of
trees to control erosion
(ii) controlled grazing: few animals
should be allowed to graze on an
are
to avoid soil erosion
(iv) legislation: these are laws
made to
combat erosion through soil
conservation boards

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NECO 2013 SSCE
TIME TABLE
Tuesday 11th June
Paper I: Practical - Biology
10.00
am - 12.00 pm
---------------------------------------
Wednesday 12th June
Paper I: Practical - Physics
10.00
am - 12.45 pm
---------------------------------------
Thursday 13th June
Paper I: Practical - Chemistry
10.00
am - 12.00 pm
---------------------------------------
Friday 14th June
Paper I: Practical - Agric Science
3.00 pm - 4.30 pm
---------------------------------------
Monday 17th June
Paper I: Objective & Essay -
Geography 10.00 am - 12.30
pm
Paper I: Objective - Financial
Accounting 1.00 pm - 2.20 pm
Paper I: Objective - Financial
Accounting 2.30 pm - 5.00 pm
---------------------------------------
Tuesday 18th June
Paper II: Objective & Essay -
Chemistry 10.00 am - 1.00 pm
---------------------------------------
Wednesday 19th June
Paper I: Objective - Economics
10.00 am - 11.00 am
Paper II: Essay - Economics
11.00
am - 1.00 pm
Paper II: Essay - Geography
3.00
pm - 5.00 pm
---------------------------------------
Thursday 20th June
Paper I: Essay - English
Language
10.00 am - 11.45 am
Paper II: Objective - English
Language 11.45 am - 12.45 pm
Paper III: Test of Orals - English
Language 12.45 pm - 1.30 pm
---------------------------------------
Friday 21st June
Paper I: Objective - Literature-
in-
English 10.00 am - 11.00 am
Paper III: Prose - Literature-in-
English 11.00 am - 12.15 pm
---------------------------------------
Monday 24th June
Paper II: Objective & Essay -
Physics
10.00 am - 1.00 pm
paper I: Objective - Government
2.00 pm - 3.00 pm
Paper II: Essay - Government
3.00
pm - 4.40 pm
---------------------------------------
Tuesday 25th June
Paper II: Objective & Essay -
Biology
10.00 am - 12.30 pm
---------------------------------------
Wednesday 26th June
Paper I: Objective - Commerce
10.00 am - 11.00 am
Paper II: Essay - Commerce
11.00
am - 12.40 pm
Paper II: Drama & Poetry -
Literature-in-English 2.00 pm -
3.40
pm
---------------------------------------
Thursday 27th June
Paper I: Objective - General
Mathematics 10.00 am - 11.45
am
Paper II: Essay - General
Mathematics 12.00 pm - 2.30
pm
---------------------------------------
Friday 28th Jun
Paper II: Objective & Essay -
Agric
Science 10.00 am - 12.30 pm
Paper I: Objective - Islamic
Studies
3.00 pm - 4.00 pm
Paper II: Essay - Islamic Studies
4.00 pm - 5.30 pm
---------------------------------------
Monday 1st July
Paper I: Objective - Christian
Religious Studies 10.00 am -
11.00
am
Paper II: Essay - Christian
Religious
Studies 11.00 am - 12.30 pm
Paper II: Objective & Essay -
Foods
and Nutrition 3.00 pm - 5.30
pm
---------------------------------------
Tuesday 2nd July
Paper I: Objective - Further
Mathematics 10.00 am - 12.00
pm
Paper II: Essay - Further
Mathematics 12.00 pm - 2.30
pm
Paper II: Objective & Essay -
Physical Education 3.00 pm -
5.00
pm
---------------------------------------
Thursday 4th July
Paper I: Objective - Hausa/Igbo/
Yoruba 10.00 am - 11.00 am
Paper II: Essay - Yoruba/Hausa/
Igbo 11.00 am - 1.00 pm
---------------------------------------
Monday 8th July
Paper II: Objective & Drawing -
Technical Drawing 10.00 am -
12.30 pm
Paper II: Objective & Essay -
Health
Science 1.30 pm - 3.30 pm
Paper I: Test of Practical -
Health
Science 4.00 pm - 5.45 pm

pls i need biology questions and answer.