2018 Neco Biology Practical Questions And Answers.


2018/2019 Neco Biology Practical Questions and Answers, expo . 2018 Neco Biology Practical Expo , Questions and Answers, Real Expo . 2018 Neco Biology Practical confirmed/ Real Expo , Questions and Answers. 2018 Neco Verified /Real Biology Practical Questions and Answers. 2018 Neco Biology Practical Expo , Questions and answers.

(2a)
G – Coconut fruits.
H – Cashew fruits.
I – Tomato fruits.
J – Tridax fruits.

(2aii)
In a tabular form:
G | Wind | The flowers do not produce scent
H | Animal | Some flowers have coloured calyx
I | Animal | The flowers do not produce nectar
J | wind | It possesses honey guide

(2aiii)
In a tabular form
Under G:
-It has a based and stony endocarp.
-It undergoes marginal placentation.
-Coconut Fruit is dry indehiscent
-It has hard epicarp.

Under I:
-It has scattered scent.
-It undergoes axile placentation.
-Tomato is a dry dehiscent.
-It has a fleshy epicarp.

(2b)
Diagram

==========================================

(3ai)
Flamboyant flowers.

(3aii)
In a tabular form:
Under parts:
1. Filament.
2. Style.
3. Petals.
4. Sepal

Under Number:
1. 5
2. 1
3. 5
4. 5

(3aiii)
Filament – It is the male organ used in production.
Style – It is the female organ through which the gametes pass.
Petal – It produces sweet juices for the insects.

(3aiv)
Pollination.

(3av)
(i) It has nectary gland.
(ii) The anthers contains few pollen grains.
(iii) The stigma is lobbed with sticky surfaces for easy adherence of the pollen grain.

(3bi)
M – Tilapia fish.

(3bii)
Pisces.

(3biii)
-It is poikilothermic animal.
-It possess dorsal fin for swimming.
-The body is covered with overlapping scales.

==========================================

(1ai)
Specimen A – Elephant Grass.
Specimen B- Grasshopper
Specimen C- Lizard.
Specimen D – Housefly.

(1aii)
Specimen B – Insecta
Specimen C – Reptilia in the sub-phylum vertebrata.

(1aiii)
Specimen D
Houseflies serve as intermediate hosts for several parasitic worms Eg Round worms in their developmental stage.

(1aiv)
Specimen B:
(i) Has fore and hind wing for flight.
(ii) Has cuticle to minimize loss of water.
(iii) Has antenna for feeling.

Specimen C:
(i) limbs are developed for movement on land.
(ii) dry scaly skin to protect it from drying up.
(iii) its digits end in claws for grasping and climbing

(1av)
A (Elephant grass) -> B (grasshopper) -> C (Lizard)

(1bi)
Specimen E – Termite
Specimen F – Spider

(1bii)
Drawing

(1biii)
In a tabular form:
Under E
1. Possession of six walking legs.
2. Possession of three body segments.
3. Possession of thorax.
4. Absence of hairy body.

Under F:
1. Possession of eight walking legs
2. Possession of two body segments.
3. Absence of thorax.
4. Possession of hairy body.

2018 NABTEB Geography { Obj & Essay } Answers.

(1ai)
Migration is the movement of people from one geographical area to another involving permanent or temporary residence or settlement.

(1aii)
(i) Rural – urban migration
(ii) Rural – rural migration
(iii) Urban – rural migration
(iv) Urban – urban migration

(1b)
(1) Natural disaster: the occurrence of natural disaster like flood, drought, famine e.t.c could force people to migrate out of the trouble areas to a good peaceful place.
(2) Insecurity: fear of security arising from war, political instability e.t.c could make people to migrate
(3) Difference in economic opportunities: as a result of these people tend to migrate to where there are more economic opportunities like jobs and business transaction
(4) Changes in status: change in status eg high level of education and wealth could make people to migrate

(1c)
(i) It leads to unemployment
(ii) It leads to high cost of living

==========================================

(4i)
(1) Italy
(2) Germany

(4aii)
ITALY:
(i) Shoes
(ii) Wrist watch

GERMANY:
(i) Motor vehicle
(ii) Textile

(4aiii)
ITALY:
(i) Cocoa
(ii) Palm oil

GERMANY:
(i) Rubber
(ii) Crude oil

(4b)
(i) It foster international cooperation
(ii) It stimulates production of exportable goods
(iii) Provision of new product
(iv) Provision of foreign exchange
(v) Generation of revenue

(4c)
(1) Indefinite capital: indefinite capital among these three counties may limit the volume of trade among them
(2) Low demand for product
(3) Low value of currency
(4) High traffic on goods
(5) Strained international relations

==========================================

(5a)
DRAW THE DIAGRAM
(Map of Nigeria showing rivers, dams, seaport area, river port)

(5b)
(1) Medium of transportation: river, especially the large ones serve as medium of transportation from one place to another
(2) Generation of hydro-electric power (H.E.P) many rivers are dammed in areas of water fall and rapid for the purpose of generating electricity
(3) Regeneration and tourism: some rivers are centers of tourist attraction and may generate foreign exchange for s nation
(4) Domestic uses: water from rivers is used for various domestic purpose such as cooking, washing, bating and drinking

(5c)
(i) Seasonal fluctuation of the water volume
(ii) Rapid and falls on the rivers
(iii) Growth of water weeds
(iv) River pollution

==========================================

(8a)
DRAW THE DIAGRAM
Showing the map of Nigeria Plains and Basin

(8b)
NIGER – BENUE TROUGH

(8bii)
(i) Human and economic activities
(ii) Most of the resource are food crops like yam, cassava, rice, cocoyam, fish and H.E.P
(iii) The main economic activities include:
– Farming where yam, rice etc are grown
– Fishing is done due to presence of river Niger and Benue
– Industrial activities like mining (limestone) in Gboro and brass work in Bida

(ii)
PROBLEMS OF DEVELOPMENT:
(i) Poor transportation in the region
(ii) Presence of waterfall and rapid along the rivers
(iii) High level of tse-tse flies and black flies infestation which ones sleeping sickness and river blindness respectively
(iv) Seasonality of the rivers inhabits transportation

(8biii)
(i) The rivers should be dredged regularly
(ii) Social amenities should be provided
(iii) Waging war against tse-tse flies and black flies in the region

2018 NABTEB Chemistry { Obj & Theory } Answers.

Nabteb Chemistry Obj

1AADDDCACCC
11DAACAABCDC
21ABABDCDCAC
31BDCCADBBBA
41DCDBDDDBAB

==========================================

(1ai)
An element is a substance that cannot be split into simpler substances by any known chemical process.

(1aii)
Limestone ==> CaCo3
TABULATE
|Elements| Group|

UNDER ELEMENT:
(i) Calcium
(ii) Carbon
(iii) Oxygen

UNDER GROUP:
(i) II
(ii) IV
(iii) VI

(1bi)
Hund’s rule of maximum multiplicity states that every orbital in a subshell is singly occupied with one electron before any one orbital is doubly occupied and all electrons in singly occupied orbitals have the same spin

(1bii)
Carbon = 1s2 2s2 2p2

(1ci)
The outermost electrons are found in 4s and 3orbitals

(1cii)
Transition elements

(1ciii)
(i) It has variable oxidation states
(ii) It forms complex ions
(iii) It forms coloured compounds
(iv) It serves as catalyst

(1d)
The atoms in iron has valency of 2 in the 4s the atoms in the iron bar contribute their valent electrons to form pool or sea of electron. The repulsive forces of the electrons is balance by the electron cloud. The nuclear force emanating from the nucleus helps to keep the electron cloud in the lattice.
Fe(s) ==> Fe2 + 2e-

==========================================

(2ai)
Electro negativity is the ability of an atom to attract electrons to itself when in a molecule

(2aii)
(i) P >AL>Na
(ii) P 284Th + 4He + Energy
(ii) 214Pb ==> 214B2 +s
(iii) 14N + 4He ==> 19O + P + energy

(2c)
Fraction left after 30 days = (1/2)n
N = 30days/10days = 3
Fraction left after 30days = (1/2)3
= 1/8
Mass left after 30days = 1/8 x 20
= 2.5g
Mass that decayed off = (20 – 2.5)g
= 17.5g

==========================================

(3ai)
Hygroscopy is the ability of a substance to absorb moisture from the atmosphere without dissolving in it to form a solution

(3aii)
(i) Conc H2SO4
(ii) Ethanol
(iii) Calcium oxide

(3bi)
M = I x t x m m/n x f
Ca + 2e- ==> Ca(s)
M = 10 x 3 x 60 x 40/2 x 96500
M = 72,000/193,400
M = 0.37g

(3bii)
TABULATE
||Electrolytic Cell || Electrochemical Cell|

UNDER ELECTROLYTIC CELL:
(i) It contains electrical energy chemical energy
(ii) The anode is positive while the cathode is negative

UNDER ELECTROCHEMICAL CELL:
(i) It convert chemical energy to electrical energy
(ii) The anode is negative electrode while the cathode is positive electrode

(3ci)
(i) Rhombic Sulphur
(ii) Monoclinic Sulphur

(3cii)
(1) It is used in industrial preparation of tetraoxosulphate (vi)

(2) It is used as fungicide

(3ciii)
H2S + Cl2 ==> 2HCL(g) + S(s)

(3civ)
(i) It is a reducing agent

(3v)
(i) Presence of air
(ii) Presence of moisture
(iii) Rusting can be prevented by coating the surface of the iron

==========================================

(4ai)
DRAW THE DIAGRAM
Hydrochloric acid is added to the zinc granules in the flask and the gas produce is collected by downward displacement of air of water.
Zn(s) + 2HCL(aq) ==> Zncl2(aq) + H2(g)

(4aii)
TWO PHYSICAL PROPERTIES:
(i) It is colorless, odourless gas
(ii) It is neutral to litmus paper

TWO CHEMICAL PROPERTIES:
(i) It reacts with metal to form hydride
2Na + H2 ==> 2NaH
(ii) It burns in air to produce steam
2H2 + O2 ==> 2H2O

(4aiii)
(i) 3H ==> Trictium

(4b)
Permanent hardness of water is a water that contain dissolve MgSO4 or CaSO4 which makes it not to lather readily with soap

(4bii)
(i) MgSO4 ==> Magnessium tetraoxosulphate (vi)
(ii) CaSO4 ==> Calcium tetraoxosulphate (vi)

(4biii)
ADVATAGES:
(i) It makes to have taste
(ii) It helps to build strong bones and teeth

DISADVATAGES:
(i) It leads to wastage of soap
(ii) It cause fuming of kettles and boilers

(4biv)
Add a few drops of water to white anhydrous copper (ii) tetraoxosulphate (vi) it turns the salt blue

(4v)
(i) The state of matter of both the reactants and the products
(ii) The volume of reactants and products it gaseous
(iii) The reactant and the products involved

==========================================

(5ai)
Homologous series is a family of organic compounds which follow a regular structure pattern in which each successive member differs in its molecular formula by a – CH2 group

(5aii)
(i) Successive members differ by –CH2
(ii) Members can be prepared by the same general methods
(iii) They have general formula

(5aiii)
H H CH3 H H
H – C – C – C – C – H
H H H CH3
2,3 – dimethylpentane

(5bi)
(i) Heat
(ii) Catalyst

(5bii)
C10H22 ==> C5H12 + C5H10
C5H10 ==> Pentene

(5c)
H H H H H H
H – C – C – C – C – C – H
H H H OH H

Pentan – 2 – 01

(5cii)
RCOOR2

(5ciii)
CH3CH2CH2COOH + CH3OH
CH3CH2CH2COOCH3
Methylbutanoate

2018 NABTEB Agric { Obj & Theory } Answers.

NABTEB AGRICULTURE SCIENCE

AGRICULTURE OBJ
1-10 ABADDABABB
11-20 BABCDDCAAD
21-30 ABADDBBBAB
31-40 CCBBDDDAAC
41-50 AAABDCDAAA
=========================

(1)
(i) Animal science
(ii) Veterinary science
(iii) Soil science
(iv) Crop production

(a) Animal science:
(i) It ensures the efficient and effective management of farm animals
(ii) It ensures a better animal productivity
(iii) It helps to ensure meat and egg production

(b) Veterinary medicine:
(i) It provides a better health management for farm animals
(ii) It ensures the control of pest and parents of farm animals

(c) Soil Science:
(i) It ensures the maintenance of soil fertility
(ii) It aids better soil classification and mapping

(d) Crop production:
(i) It helps in effective crop management practices
(ii) It ensures optimum plant population

==========================================

(2ai)
(i) small farm holding, land fragmentation or land tenure system does not permit mechanization
(ii) There are no access roads for machines
(iii) It is costly or expensive to hire machines and most farmers are poor
(iv) High running cost for machinery discourages mechanization
(v) There is inadequate farm laboures of farm hands to enhance mechanization
(vi) Unfavorable soil terrain or topography prevent mechanization

(2bi)
(i) It is mostly practiced by peasant farmers
(ii) It involves small portion of land
(iii) There is no specializations
(iv)The returns or output are usually very low
(v) It usually involves family labour

(2bii)
(i) It involves the use of hired labour
(ii) Records are kept
(iii) Yield or output is usually high
(iv) It involves huge investment of money or capture
(v) It involves the cultivation of large hectares of lard

==========================================

(3a)
(i) Unpredictable breeding behavior or rabbits
(ii) Inadequate sanitation and proper
(iii) it is labour intensive
(iv) lack of capital impedes large investment in rabbitry
(v) inadequate supply and high cost of concentrates feeds
(vi) high nest box mortality of litters

(3b)
(i) coccidiosis
(ii) enteritis
(iii) ear canker
(iv) ringworm

(3bii)
(i) passing of soft faces which may be blood stained
(ii) high temperature
(iii) brown scab inside the auditory canal
(iv) circumscribed lesions on skin

(3biii)
(i) treatment of sick animals with coccidiostate
(ii) appy appropriate drugs (antibiotics)
(iii) use of miticides
(iv) use of fungicide to cure lesions

==========================================

(5)
(a) land may be defined as the uppermost layer of the earth crust in which Agriculture and non – Agriculture activities are carried out. It is also the solid part of the earth surface which has as its components water, air, soil, rock, minerals, nature vegetation and animal of life and it is suitable for agriculture production

(5b)
– Agriculture land example are:
(i) land for crop production
(ii) livestock production

– Non – Agriculture land example are:
(i)industrial or factory use
(ii) mining

==========================================

(6a)
Weathering is defined as the gradual breaking down or disintegation of rocks by either physical (mechanical) or chemical process.

(6b)
(i) physical or mechanical weathering
(ii) chemical weathering
(iii) biology weathering

(6ci)
Physical Weathering:
(i)wind: The force of wind carries along small pieces of soil which hit against the surface of parent rock causing it to disintegrate into smaller soil particles.
(ii)water: Moving water or rain has a grinding effect against the surface of the parent rock. This causes the rock to disintegrate into smaller soil particles.
(iii)man activities: moving activities or rain has a grinding effect against the surface of the parent rock. This causes the rock to disintegrate into smaller soil particles.

(6cii)
Chemical Weathering:
(i)hydration: Soluble minerals in the rocks absorb water and expand weakening rock structures The rock becomes porous and eventually disintegrates into smaller soil particles
(ii)hydrolysis: Water reacting with soluble minerals in the rocks loosening and breaking them into smaller particles.
(iii)Oxidation: Reaction of rock minerals with oxygen to form oxide compounds which easily break up.

2018 NABTEB Biology Practical Answers.

NABTEB BIOLOGY PRACTICAL

(1a) Chloroplast aids the manufacture of food (photosynthesis in green plants

(1b) mitochondria is the site for respiration ie it helps to break down food into simple sugar

(1ii)
(i) Prophase
(ii) Metaphase
(iii) Anaphase
(iv) Telophase

(1iii) viruses are regarded as non-living organisms because they are inert outside the host body.

(1iv) PICK TWO
(i) Tongue
(ii) Noise
(iii) Eye
(iv) Skin
(v) Ear

(1v) PICK TWO
(i) Kidney
(ii) Lungs
(iii) Skin
(iv) Liver

(1vi) PICK TWO
(i) Hyper myopia (long-sightedness)
(ii) Myopia (short sightedness )
(iii) Presbyopia
(iv) Astigmatism

(1b) PICK ONE
(i) Night blindness
(ii) Reduced resistance to diseases

(1vii) PICK ONE
(i) Cowpea
(ii) Groundnut
(iii) Melon

(1viii)
– xylem: it helps to conduct water and dissolved mineral salt from the roots to the leaves. – Phloem: it helps in storage of food

(1ix)
(a) Diploid number of cells (2 offspring)
(b) Haploid number of cells (4 offspring)

(1x)
– Tadpole ==> kidney
– Catfish ==> kidney

(1xi)
– Incomplete metamorphosis
– Complete metamorphosis

(1xii)
(a) Baobab tree ==> arid area (terrestrial)
(b) Rock mangrove tree ==> estuarine

(1xiii)
(a) White blood cell: it helps to defend the body against disease by ingesting the bacteria and virus that causes disease
(b) Red blood: it helps to transport oxygen from the lungs to the body cells

(1xiv)
(a) Sweat gland: it helps to remove sweat from the body
(b) Blood plasma: it helps to transport the substances that are dissolved in it as well as the cells that float in it.

(1xv) PICK TWO
(i) Fossil records
(ii) Evidence from comparative anatomy
(iii) Evidence from geographical distribution
(iv) Evidence from embryology
(v) Evidence from vestigial organs

(2)
A ==> bean seed
B ==> maize grain
D ==> tilapia fish

(2ii)
C ==> terrestrial habitat
D ==> aquatic habitat

(2iii)
A ==> explosive mechanism
B ==> wind

(2b) DRAW THE DIAGRAM

(3a)
E ==> butterfly
F ==> grasshopper
G ==> cockroach
H ==> housefly

(3ii)
E ==> it aids pollination
F ==> it destroy leaves of plants
G ==> it helps in the spread of disease
H ==> it helps in the decomposition of substance

(3iii)
E ==> sand dunes
F ==> leaves of plants
G ==> dark cupboard
H ==> manure and decomposing material

(3b) TABULATE
Specimen: | E | F | G | H |
Class: |insecta | insect | insect | insect|
Phylum: | Arthropoda | | Arthropoda | | Arthropoda | | Arthropoda |

(4ai)
A ==> net venation
B ==> parallel venation

(4aii)
– SPECIMEN C
(i) presence of dry skin covered with scales
(ii) presence of hind and fore limbs for locomotion
(iii) presence of buccal cavity for feeding

(4aiii)
SPECIMEN D
(i) Presence of scale on skins
(ii) Presence of lateral lines
(iii) Presence of fins for movement
(iv) Fore limbs and hind limbs for movement
(v) Mouth for feeding
(vi) Lateral for detecting of vibration

(4b)
TABUALTE
Specimen: | Economic importance | type
E | aids pollination | complete
F | destroys leaves | incomplete
G | spreads disease | incomplete
H | decoys of substance | complete

(5a)
TABULATE
S/N | Ecological Instrument | Use|
1 | thermometer | to measure temperature
2 | hygrometer | to measure relative humidity
3 | barometer | to measure pressure
4 | pooter | collection of insect
5 | Quadrant | to study plants population
6| rainguage | to measure amount of rainfall

(5b)
PICK THREE
BIOTIC FACTOR
(i) Competition
(ii) Parasitism
(iii) Predation
(iv) Pathogens
(v) Mortality
(vi) Migration
(vii) Food

ABIOTIC FACTORS
PICK THREE
(i) Edaphic factors
(ii) Chemical factors
(iii) Climatic factors
(iv) Topographic factors

(5c) Grass ==> Rat ==> Snake

2018 Waec Geography Obj And Theory Answers

OBJ
1-10 ABCDBBCADB
11- 20 BACCABABCA
21- 30 CDACBCBACA
31- 40 ACDADCAACB
41- 50 ACDBCBACBA

 

 

 

 

 

(2ai)
URBAN:
-Industrial function
-Commercial function
-Administrative function
RURAL:
-Agricultural function
-Lumbering function
-Fishing function

(2b)
-Provision of food:Urban areas depend on
rural areas for food stuffs
-Unskilled labour supply:Unskilled labour
supply usually come from rural to urban
industries
-Medicinal herbs:Medicinal herbs and
roots are usually bought from rural to urban areas for phamaceuticals
===============================
(3b)
-Labour
-Transport
-Market
-Water
-Site
-Climate

================

(5a)
DRAW THE GRAPH

(5b)
Movement of goods and services
-Movement of people
-Development of tourism
-Opening up new lands and areas
-Generation of revenue

(5c)
-It is very costly to build and maintain
railways
-Railway transport is relatively slow in some other areas
-Railway network is generally poor

4)
Characteristics of subsistence agriculture
1. It is mostly practiced by peasant
farmers.
2. It involves a small area of land.
3. It involves the use of local tools eg
hoe, cutlass etc.
4. There is no specialization.
5. It employs unskilled labour.
6. The harvest returns are small.
7. It usually involves the use of family
labour.
8. It involves mainly the production of food crops alone.
9. It provides for the basic needs of the family.
10. There is little or no surplus for sale.
11. Mixed system of farming is usually
practised.

4b) ADVANTAGES OF SUBSISTENCE
AGRICULTURE
1. Provision of basic needs of the family
like food and clothing
2. Small plot of land can be used to
cultivate such as the backyard garden.
3. Little or low capital is required to carry
out subsistence farming.
4c) DISADVANTAGES OR PROBLEMS OF
SUBSISTENCE AGRICULTURE
1. Family labour supply is unreliable
because they are not paid for job done.
2. Crude tools are used such as cutlass,
hoe and rake.
3. Fragmentation or small farmland is
available because lands are owned
communally and usually shared among
family members regardless of whether
they are interested in farming or not.
4. No surplus for sale to earn income. All
produce are consumed by the family.
5. Pest and diseases are not controlled.

  • 1b)
    – Making relevant products:
    manufacturing industries in-tropical Africa
    create an environment where the products
    created for it populace are made with a
    proper understanding of their needs.
    – Job creation: With vast youth
    unemployment in the tropical Africa ,
    manufacturing is one of the only sectors
    next to agriculture that can create a
    significant amount of jobs for the
    currently unemployed in these areas.
    – Participation in the global economy:
    Unlike other countries that have strong
    manufacturing
    sectors, tropical Africa countries is limited
    in its participation in the global economy.

1c)
– inadequate capital;
– poor management;
– shortage of raw materials;
– poor infrastructu6

2018 Waec Physics Practical Expo/Solutions.


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2018 Waec Data Processing { Essay & Obj } Answers.

DATA PROCESSING OBJ:
1-10: ACDBCCDCCA
11-20: CBABCCDADA
21-30: DBBBBACDAD
31-40: ADADACCADA

1a)
data model is the process of structuring and organizing data in addition data model can also be defined as a description of the organisation of data in data base
____________________________

1aii)
i)flat file mode
ii)network model
iii)hierarchical database model
_________________________

1b)
i)conceptual data model
ii)logical data model
iii)physical data model
_________________________

1bi)
conceptual model is also known as the data model that can be used to describe the conceptual schema when a database system is implemented. It hides the internal details of physical storage and targets on describing entities, datatype, relationships and constraints.

__________________________

2 a )
Micro soft offfice word

2 aii )
water mark

2 aiii)
by saving doucument to a secured storage device

2 bi)
icon- is a pictogram or ideogram displayed on a computer screen in order to help the user navigate a computer system or mobile device .

2 bii )
browser – is a software application for retrieving ,presenting and traversing information resources on the World Wide Web .
__________________________

3(a) ♡ Ctrl+P
♡ select “pages”
♡ type ” 1, 2, 3, 4, 5″ in the pages field
♡ select the desired printer
♡ click ok

3b
(i) A pop-
up is a graphical user (GUI) display
area. The pop-up window
containing an advertisement is usually
generated by JavaScript that uses cross-site
scripting (XSS), sometimes with a secondary
payload that uses Adobe Flash. They can
also be generated by other vulnerabilities/
security holes in browser security.

(ii) Pop-up ads or pop-ups are forms of online
advertising on the World Wide Web.

(iii) Open Internet Explorer. Click the
tools button (it is in the top
righthand corner and looks like a
cog), then select internet options.
Go to the Privacy tab, and under
Pop-up Blocker, select the Turn
on Pop -up Blocker check box, and
then tap or click ok.

3c
(i) Microsoft power point

y
________________________________

(5ai)
I. APPLICATION:
(i) Microsoft word
(ii) web browser

II. HARDWARES:
(i) Printer
(ii) Computer system

(5aii)
(i) He must have internet access
(ii) He must have correct recipient email address

(5aiii)
(i) Not connected to the internet
(ii) Slow network
(iii) The size of the attachment maybe too big

(5aiv)
Printer

(5bi)
Web browser

(5bii)
(i) Mozilla Firefox
(ii) Google Chrome
(iii) Internet Explorer

________________________________

( 6 ai)
Drop cap

( 6 aii )
( i ) Type the first word or sentence .
( ii ) Highlight the first character .
( iii ) Click on drop cap from insert menu .

( 6 aiii )
( a) Click enter after the second paragraph .
( b ) Click on columns from page layout on menu bar.
( c) Click on two columns from more columns option.
( d ) Mark on line between box , select from this point forward on apply to box .
Click Ok

( 6 b )
( i ) Shape
( ii ) clip art

6 ci)
– Launch the corel draw application
– click on elipse tool or F 7 on keyboard and drag .

( 6 cii )
– On the corel draw environment
– click on text tool and Click on the place to add the caption .
– Type ” Happy Birthday ” From the keyboard .

( 6 ciii )
– Highlight the caption
– Click on fill text
– Select red colour from fill colour dialog box

( 6 civ )
– Highlight the caption and click on text on the menu bar.
– Click on text to path
– Click on the circular object with the arrow
________________________________

9a )- He decides the demand of the product at that time

– He helps to make arrangement for storage facilities

– He helps to fix the price for the price for the agricultural product

He helps to look at the quality and quantity of agricultural product to be marketed-

He helps to grade the agricultural product

(9 b) – Facilitator helps to decide where there is the demand for the processed food –

He also helps in fixing the good price for the product

– He decides on how to store the product in the case of excess –

He will decide the quality of the product-

He helps in grading of the product

2018 Waec Chemistry Practical Expo.


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PLS NOTE THAT YOU ARE REQUIRED TO
USE UR SCHOOL’S TITRE VALUE IN
NUMBER 1.
OUR SCHOOL GOT 15.30CM3.
REPLACE WITH UR SCHOOLS OWN AND
RECALCULATE.

(1a)
Volume of pipette used=25.0cm^3
TABULATE
Reading: Rough|1st|2nd|3rd
Final reading: 16.00|15.40|17.20|15.30
Initial reading: 0.00|0.00 |2.00 |0.00
Vol of acid used: 16.00|15.40|15.20|15.30
Average volume of A used = (VA1 + VA2 +
VA3) cm³
VA = (15.40 + 15.20 + 15.30)/3cm³
VA = 45.90/3 = 15.30cm³.
B contains 4.80g/250cm³
Hence x8 = 1000cm³
X = 4.80 × 1000/250 = 4.80 × 4 = 19.2gdm³

(1bi)
Hence molar concentration of B in
moldm3
Mass Conc(8dm³) = molar Conc × molar
mass
Molar Conc of B = mass conc/molar mass =
19.2gdm³/127gmol
Cb = 0.151moldm3

(1bii)
Concentration of A in moldm-³, CA is
given by CAVA/CBVB = na/nb
Where CA = ?
VA = 15.30cm³,
na = 1
CB = 1.51moldm-³, VB = 25.0cm³, nb = 5
CA × 15.30/0.151 × 250= 1/5
Therefore CA = 0.151×25×1/15.30×5 = 3.775/76.50 = 0.049moldm-³
Hence Conc. Of A in moldm-³ = 0.049moldm-³

(1biii)
No of moles of Fe²+ in the volume of B
pipetted
n= cv/1000 =
0.151×25.0/1000 =
3.775/1000
= 0.003775moles of Fe²+

=========================================

(2a)
TEST: C + about 5cm3 of distilled water
OBSERVATION: C dissolves to form a clear
solution;
Turns blue litmus paper to pink
INFERENCE: C is a soluble salt;
C is fairly acidic

(2ai)
TEST: 1st portion of C + NaOH(aq) in
drops;
then excess
OBSERVATION: pale-blue precipitate forms
in drops of NaOH(aq) which persists in
excess of NaoH(aq)
INFERENCE: cu²+ present.

(2aii)
TEST: 2nd portion of C + NH3(aq) in drops
and then in excess
OBSERVATION: pale blue precipitate forms
in drops of NH3(aq).
Ppt dissolves to form a deep blue
coloration.
INFERENCE: Cu²+ present.
Cu²+ confirmed

(2aiii)
TEST: 3rd portion of c + AgNO3(aq) + HCL
(aq)
OBSERVATION: a creamy white ppt forms.
INFERENCE: Halogen/Halides present.

(2bi)
TEST: D + about 5cm³ of distilled H2O
OBSERVATION: D dissolves to form a clear
solution.
The test tube feels warmth
INFERENCE: D is a soluble salt.

(2bii)
TEST: 2cm³ of D + HCL(aq)
OBSERVATION: effervescence occurs, an
odourless and colourless gas evolved.
Precipitate dissolves in dil HCL(aq)
INFERENCE: CO32-, so32-present
CO32- present

=========================================

(3a)
A white precipitate of barium sulphate
will be formed by the instant reaction
between sulphuric acid and barium
chloride.
H2SO4(aq) + BaCl2(aq) -> BASO4 + 2HCl

(3b)
Iron II sulphide reacts with hydrochloric
acid, releasing the malodorous and very
toxic gas, hydrogen sulphide
FeS(aq) + 2HCl -> Fecl2(aq) + H2S(g)

(3c)
When solid iron fillings are added to
dilute aqueous hydrochloric acid, Iron
(II)Chloride OR ferrous chloride is
formed, with the liberation of hydrogen
gas.
Fe(s) + 2HCL(aq) -> Fecl2 + H2(g)


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JAMB: Striking Non-academic Staff Threatens To Disrupt 2018 UTME.

This year’s Unified Tertiary Matriculation Examination (UTME), will begin on Friday. It is scheduled to hold from March 9 to March 17 Ugwoke said that the threat became imperative
as the Federal Government had continued to renege on the agreement it entered with the unions.

According to him, “since our strike continues, JAC has decided that no activity will take place in the
universities.”

“This is because if we are on strike and you
expect our members to come and supervise JAMB or come to operate their machines like the computers, that means we are breaking the strike already.

“JAC has also decided that to redraw their assistance they would not go to work. So all I know is that as long as we are on strike, JAC has decide that there will be no exam.

“Our members will not participate and they will make sure that the exam does not hold in the universities that is the position of JAC, ‘’ he said.

He noted that JAC has also decided to hold a mega mass protest rally on Thursday, March 8, to sensitise the public on the issue of alleged corruption and the social injustices in the Nigerian university system.

JAMB Confirms Printing Of Exam Slip For 2018 UTME Begins March 6th.

JAMB has revealed that the printing of exam slip for the 2018 UTME will begin March 6th, 2018 ahead of the main exam which begins on March 9th, 2018.

The printing of exam slip is to enable candidates to know the exact date, time and venue for their JAMB exam.

So if you registered for 2018 UTME, it is advisable you print your exam slip as soon as possible once the process begins.

JAMB has stated that there will not be any mop up exam for any candidate who fails to appear on the day and time for his/her exam. That means once you miss your exam, there is nothing that can be done.

We will post an update that highlights the procedure for printing of exam slip once the process begins.

Who Has The Highest JAMB Score in History? (See His Name and Jamb Score)

A lot of young students may just dream about the achieving of the highest JAMB score. Nonetheless, for some people in Nigeria, it`s just a reality in which they live. Who is the owner of the highest JAMB score in history?


Who owns the highest JAMB score record?
According to JAMB scores statistics, Ibrahim
Shamwifu got the highest JAMB score in history. with 399 JAMB score. This student is indigene to Kogi State. It seems that this record will not be broken for the next ten years. This highest result is recorded on JAMB score 2016.

Student Ibrahim Shamwifu made almost impossible in 2016! He just needed one point in the score for the JAMB! If he managed to get at least one more point to become the first person who managed to get the maximum in the JAMB.

This young man wanted to study Medicine and Surgery at the Ahmadu Bello University. It was the main reason why he joined the JAMB tests in 2016! It`s not the first time in the history when Nigerian students show their excellent knowledge. In the same year, a Nigerian student graduated from UniLag with 5.0 in CGPA.

Therefore, if you think that it`s impossible to get the highest score in JAMB – you are completely wrong. The only thing to remember when you pass the JAMB test is to rely only on your knowledge. The better you prepare – the better the results in the end! That`s why you shouldn`t be lazy when you get ready to one of the most important tests in your life! Just embrace it and be prepared for everything!

JAMB Mock Exam 2018: Things To Take Note Of During The Exam.

It is no more news that the much awaited JAMB Mock exam for 2018 UTME candidates will finally hold on Monday February 26th, 2018.

If you are among those that will be writing the exam, please do take it serious as you may likely pick one or two things that will help you in the main examination.

Also do not forget that other candidates that won’t be partcipating in the exam will depend on you for updates and relevant information concerning the conduct of the mock exam. So please take note of everything that is happening in your centre and keep us updated.

We will create a LIVE UPDATES thread on that day, so you can let us know anything that is happening before the Mock exam begins or if there are any delays in the process.

While in the hall, please take note of everything but most importantly bellow;

1. Check if there are CCTV Cameras

2. Check if the Computer systems are special in anyway

3. When you login to take an exam, check how the CBT environment is laid out.

4. Where is the time Located, Where are your Subject Navigation Located, Where are the Question Numbers Located, e.t.c.

5. Check if you can use both Keyboard and Mouse.

6. Check the time given for the exam

7. Check the number of questions given.

8. Finally check if there is any thing new with the whole process.

Ensure you arrive your centre at least 30 minutes before your scheduled time.

Lastly, do not forget to come back to ExamCamp.com.ng Or ExamCamp Whatsapp Group to share your experiences. There will be a thread for that after the mock exam.

How To Reprint JAMB Mock Slip 2018 (Step by Step Guide).

It is no longer a news that JAMB mock examination date has been announced and confirmed. The question that comes to the mind now is, “When will JAMB mock reprinting start?” OR more importantly, “How do I reprint JAMB mock slip 2018?”. Those are the questions candidates are battling with currently.

A lot of candidates have been asking me these questions and some other related questions. I have decided to w
HOW TO REPRINT JAMB MOCK SLIP 2018

Follow the easy steps below to print your JAMB mock slip successfully.

1. Go to JAMB mock slip reprint page by clicking
http://jamb.org.ng/efacility/checkmockcentre

2. Enter your JAMB Registration Number/Email Address

3. Click on “Check My Details” You’ll be displayed with your JAMB mock examination details showing your venue, time and seat number.

Easy, right? Let me make this know to you. You can also print your JAMB mock slip through your email address.

Keep checking your email address daily. You will receive a message from JAMB very soon. It contains a PDF file, download it and Open it.

You’ll see your JAMB mock examination details. You can proceed to print in using the CTRL+P B.utton on your keyboard. If you face as problem while trying to re-print JAMB mock slip, feel free to use the comment box below.

Official Link to Print JAMB Mock Exam Slip for 2018.

JAMB has now released the official link and procedures to print the 2018 JAMB Mock Exam Slip for the exam holding on 26th February, 2018.

This procedure is especially useful for those who may have provided wrong emails during registration, or those who didn’t receive the email sent by JAMB, due to network issues.

Please note that it is best you follow the procedures below using a computer system, to enable you print it immediately.

The smart phone users can actually save the slip on their mobile phone to print later. Please don’t user Opera-Mini for this to be on the safe side. You can use Chrome or Firefox.


Procedures to Print 2018 JAMB Mock Exam Slip

1. Visit the official JAMB Mock Exam Printing Portal by clicking HERE

2. In the form space provided, enter your JAMB registration number or Email used to register

3. Click “Print Examination Slip” for the Pop-Up to Print.

For those who did not indicate to write the Mock Exam, you will most likely not be given access to print any slip.

If you have any issues, let us know in the comment box below so we can help you.