[4/13, 07:12] Jjjjj: *(Biology 07:00Am)*
Question
1 :- the termite caste represented is the
CORRECT ANSWER = soldier
Question
2 :- the hormones which stimulates growth in young mammals is
CORRECT ANSWER = II
Question
3 :- the structure that contains melanin that protects skin from ultra violet rays is labelled
CORRECT ANSWER = thyroxin
Question
4 :- the soil type which when present is high proportion will not support the cultivation of vegetable is
CORRECT ANSWER = clay
Question
5 :- this is an example of a food chain found in
CORRECT ANSWER = sea water

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Question
6 :- the changind of colour by a cameleon to that of the environment is an example of
CORRECT ANSWER = protective coloration
Question
7 :- the matured sex cell which takes part in sexual reproduction is referred to as
CORRECT ANSWER = gamete
Question
8 :- the function of the part labelled I is to
CORRECT ANSWER = store food for the embryo
Question
9 :- possesion of broad leaves and buttress roots are characteristics features of a
CORRECT ANSWER = \rain forest
Question
10 :- the diagram represents
CORRECT ANSWER = a wind vane
Question
11 :- the part labelled III is
CORRECT ANSWER = carapace
Question
12 :- the mode of nutrition in the prganism above is
CORRECT ANSWER = holozoic
Question
13 :- the part labelled III is the
CORRECT ANSWER = left ventricle
Question
14 :- Euglena can be regarded as a plant because it posesses
CORRECT ANSWER = chloroplast
Question
15 :- Carbon (IV) oxide is removed from the atmosphere by the process of
CORRECT ANSWER = photosynthesis
Question
16 :- if T represents tallness and t represents shortness then the progeny of the test cross Tt x tt will be
CORRECT ANSWER = 50% tall and 50% short
Question
17 :- a common air pollutant emitted from the exhaust is
CORRECT ANSWER = carbon(ii) oxide
Question
18 :- the condition that is NOT necessary for germination of seed is
CORRECT ANSWER = pressure
Question
19 :- the part labelled IV is for
CORRECT ANSWER = sucking
Question
20 :- production of naked seed is a distinctive feature of
CORRECT ANSWER = cornifers
Question
21 :- which of the following is a characteristics of insect-pollinated flower
CORRECT ANSWER = they have nectar
Question
22 :- which of the following factors may cause overcrowding in a population
CORRECT ANSWER = food variety
Question
23 :- Larmarck’s wvolution theory could be summarized by the statement that
CORRECT ANSWER = the changing environment imposes structural physiological and behavioural changes in organism

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Question
24 :- a man with blood group A (TaP) married a woman with blood group o (pp). Which of the following is the probable ratio of the blood groups of the offsprings?
CORRECT ANSWER = 2:02
Question
25 :- during the dry season snails survive by
CORRECT ANSWER = aestivation
Question
26 :- an example of genetically associated disease is CORRECT ANSWER = haemopholia
Question
27 :- during the process of urine formation untrafiltration occurs in the
CORRECT ANSWER = bowman’s capsule
Question
28 :- if a black guinea pig of genotype BB is crossed with a white guinea bb. What will be the phenotype of the f1 generation
CORRECT ANSWER = all the offspring would be black
Question
29 :- in the kidney of mammals the site for ultrification is the
CORRECT ANSWER =
bowman’s capsule
Question
29 :- in the kidney of mammals the site for ultrification is the
CORRECT ANSWER = bowman’s capsule
Question
30 :- the theory of natural selection was postulated by
CORRECT ANSWER = Darwin
Question
31 :- the part labelled V carries oxygenated blood to the
CORRECT ANSWER = kidney
Question
32 :- Blood groups and tongue rolling are examples of
CORRECT ANSWER = discontinous variation
Question
33 :- in mammals normal implanation takes place in the
CORRECT ANSWER = uterus
Question
34 :- plants which obtain their nutrients from dead organic matter are
CORRECT ANSWER = saprophytic
Question
35 :- the soil type that has the highest capillarity power is the
CORRECT ANSWER = sand
Question
36 :- the largest biotic community in nigeria is the
CORRECT ANSWER = tropical rain forest
Question
37 :- the excretory organ of earthworm is the
CORRECT ANSWER = nephridium
Question
38 :- the long hollow beak with tabular tongues in humming birds is an adaption for
CORRECT ANSWER = sucking necter from flowers
Question
39 :- a severe long dry season is a characteristic feature of
CORRECT ANSWER = sahel savanna
Question
40 :- Red blood cells are also known as
CORRECT ANSWER = erythrocytes
[4/13, 07:14] Jjjjj: *(CHEMISTRY)*
*(07:00Am)*

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1 :- the element with an electron
configuration 1s2 2s2 2p6 3s23p64s2
CORRECT ANSWER =a noble gas

2 :- ethanoic acid is monobasic
because its
CORRECT ANSWER =has one
replaceable hydrogen molecule

3 :- the type of bond in nitrogen
molecule is
CORRECT ANSWER =covalent

4 :- in the hydrogenation of benzene,
the catalyst used is
CORRECT ANSWER =Ni

5 :- the acid found in sour milk is
CORRECT ANSWER =lactic acid

6 :- transition metals with higher
oxidation state will form oxides that
are
CORRECT ANSWER =basic

7 :- the iupac nomenclature of the
compound above is
CORRECT ANSWER =pent-2-yne
8 :- in the diagram above X is
CORRECT ANSWER =H2

9 :- if 200cm3 of oxygen passes
through a porous plug in 100sec.find
the time taken for the same volume
of hydrogen to pass through the
same porous plug
CORRECT ANSWER =25

10 :- the method used in purifying
sugar is
CORRECT ANSWER =crystallization

11 :- the activation energy of a
chemical reaction can be lowered by
CORRECT ANSWER =the addition of a
catalyst

12 :- in the equation above X is
CORRECT ANSWER
=CH3COOCH2CH3

13 :- a solubility curve is a plot of the
solubility of solute against
CORRECT ANSWER =Temperature

14 :- the method that is not
economical for the removal of
hardness in water for town supply is
CORRECT ANSWER =permuting

15 :- in the electrolytic extraction of
sodium from fused sodium chloride
calcium chloride is usually added to
CORRECT ANSWER =remove
impurities

pressure is
CORRECT ANSWER =27.3

21 :- what physical property of alkane
decreases as the number of carbon
atoms increases
CORRECT ANSWER =solubility

22 :- which of the following
substances are made by
polymerization
CORRECT ANSWER =nylon and
artificial rubber

23 :- which of the following
compounds is unsaturated
CORRECT ANSWER =methylbenzene

24 :- a compound contains 31.9%
potassium 28.93 chlorine and the
remaining oxygen.what is the
chemical formula of the compound?\
CORRECT ANSWER =KClO2

25 :- the use of neon light in
aerodome beacons is due to its
CORRECT ANSWER =COLOUR

26 :- K4Fe(CN)6 is an example of a
CORRECT ANSWER =complex

27 :- if T change in s is small relative
to change in H at room temperature
the value of change in G will be
CORRECT ANSWER =positive

28 :- the solibility of alkanols in water
is due to the presence of
CORRECT ANSWER =hydroxyl group

29 :- when lubricating oil is
redistilled,it yields
CORRECT ANSWER =petroleum jelly

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30 :- the iupac nomenclature of
K2Cr2O7 SI
CORRECT ANSWER =potassium
heptaoxochromate(VI)

31 :- ALKYNES BURN WITH SMOKY
LUMINOUS FLAME DUE TO HIGH
CORRECT ANSWER =carbon content

32 :- ozone is known for its ability to
CORRECT ANSWER =attack the
respiratory tract of organisms

33 :- which of the following
properties is peculiar to graphite?
CORRECT ANSWER =it is unreactive

34 :- calculate the amount in moles of
zinc that will be deposited by
passing 10 faradays of electricity
through a solution of zinc salt
CORRECT ANSWER =5

35 :- the air pollutant that dissolves
in water due to produce acid rain is
CORRECT ANSWER=O3

36 :- the property pecuiliar to pure
oxygen is that it
CORRECT ANSWER=is lighter than air
37 :- the principal property that
determines the method of an
extraction of a metal from its oe is
its
CORRECT ANSWER=position in the
activity series

38 :- when water is added to calcium
oxide,it forms
CORRECT ANSWER =calcium
hydroxide

39 :- in the reaction above, the
reverse reaction can be favored by
CORRECT ANSWER=decreases the
temperature

40 :- an element with electron
configuration 1s2 2s2 2p6 3s2 3p4
belongs to the
CORRECT ANSWER =p-block
[4/13, 07:14] Jjjjj: *Physics 07:00Am:*

1 :- the velocity ratio of an inclined plane is
CORRECT ANSWER = 1/sinQ
2 :- where must an object be placed in front of the concave mirror so that the image will formed between the centre of curvature and the focus
CORRECT ANSWER = beyond the centre
3 :- optical instruments do NOT employ the principle of linear magnification in their operations rather they use
CORRECT ANSWER = angular magnification
4 :- the force of attraction between two masses m1 and m2 separated at a distance 2r is given as
CORRECT ANSWER = Gm1 m2/4r2
5 :- the condition for resonance to occur in an R-L-C serves circuit is
CORRECT ANSWER = W0 = 1/Lc
6 :- calculate the work done if a force of 10N applied at an angle of 30 0 to the horizontal moves the body through a distance of 0.05m
CORRECT ANSWER = 0.25 {3 J
7 :- the expression for electric potential (V) is
CORRECT ANSWER = (q / 4Er)
7 :- the expression for electric potential (V) is
CORRECT ANSWER = (q / 4Er)
8 :- a solid weighs 10.5N in air and weighs 5.5N when immersed in a liquid of density 900kgm-3, calculate the volume of the solid
CORRECT ANSWER = 5.56 x 10 -4 m 3
8 :- a solid weighs 10.5N in air and weighs 5.5N when immersed in a liquid of density 900kgm-3, calculate the volume of the solid
CORRECT ANSWER = 5.56 x 10 -4 m 3
9 :- during dispersion, colours of light
CORRECT ANSWER = travel at different speeds
10 :- cobvert 180 0F to 0C
CORRECT ANSWER = 82 0C
11 :- the bean balance is used to measure
CORRECT ANSWER = mass
12 :- the diagram above represents four identical beaker of water with some droplet of a blue colour pigment. Which of them will have a faster rate of diffusion?
CORRECT ANSWER = beaker IV
12 :- the diagram above represents four identical beaker of water with some droplet of a blue colour pigment. Which of them will have a faster rate of diffusion?
CORRECT ANSWER = beaker IV
13 :- a thick glass tumbler cracks when hot water is pour into it because of
CORRECT ANSWER = uneven expansion
14 :- the point M in the diagram above is in stable equilibrium with
CORRECT ANSWER = minimum potention energy
15 :- the charge stored by a 5F capacitor connected to a potential difference of 40V is
CORRECT ANSWER = 200C
16 :- the dissociation of salt solution and acids into ions is known as
CORRECT ANSWER = electroysis
17 :- the resultant of two parallel forces acting in the same direction applied to a block of wood will be
CORRECT ANSWER = maximum
18 :- from the above the induced e.m.f depends on
CORRECT ANSWER = I, II and III
19 :- how much current does a 120W light bulb draw when connected to a voltage of 240?
CORRECT ANSWER = 0.5A
20 :- from the above diagram the effective resistance between P and Q is
CORRECT ANSWER = 4.33n
21 :- a semi-conductor with rqual numver of holes and electron is known as
CORRECT ANSWER = intrinsic semi-conductor
22 :- which of the following is CORRECT about the motion of a simple pendulum?
CORRECT ANSWER = potention energy is maximum at the extremes
23 :- in the vibration of stretched strings, the frequency F and the tension T are related by
CORRECT ANSWER = f & square root T)
24 :- from the diagram above, the pressure acting on the trapped air is
CORRECT ANSWER = H mmHg
25 :- light energy E is expressed as
CORRECT ANSWER = E = hf
26 :- the ejection of electron from the surface of a
CORRECT ANSWER = thermianic emission
27 :- where does refraction take place?
CORRECT ANSWER = at the boundary between
28 :- ten 6V cells connected in parallel will give an effective e.m.f of
CORRECT ANSWER = 6V
29 :- vavpour is said to be saturated when
CORRECT ANSWER = in a dynamic equilibrium
30 :- a lagged calculator is suitable for measuring heat energy because it
CORRECT ANSWER = prevents heat loss and gain
31 :- a wire carries a current of 3.0A with a magnetic field 2.0T at an angle of 30 0. calculate the force on a segment of wire 0.5m
CORRECT ANSWER = 1.5N
32 :- which method of heat transfer is electro-mamgnetic in nature?
CORRECT ANSWER = radiation
33 :- a light of 6.22eV is incident on a cadmium surface. If a stopping voltage of 2.15eV is required to reduce the photocurrent to zero, calculate the work function of cadmium
CORRECT ANSWER =

34 :- from the digram above, calculate F
CORRECT ANSWER = 60.00N
35 :- which of the folowing exhibits a wave motion?
CORRECT ANSWER = a plucked stretched s tring
36 :- a stone weighs W1 Newton in air W2 Newton in water. The relative density of the stone is
CORRECT ANSWER = W1/(W1-W2)
37 :- why do pressure pots cook food faster than other conventional pots?
CORRECT ANSWER = its higher pressure
38 :- a spring of length 0.06m is acted upon by a force of 2N creating an extension of 0.02m. What would be the length when the applied force is increased by 8N?
CORRECT ANSWER = 0.14m
39 :- when a bar magnet is suspended freely in the earth’s magnetic field, it will point to
CORRECT ANSWER = north – south direction

40 :- the point where a ball moving in a viscous liquid start to move with uniform velocity is
CORRECT ANSWER = terminal velocity

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