Ladies and Gentlemen, with the kind permission of the author (O.J. OLAOYE) of the number one textbook for JAMB Chemistry/Biology (EXplicit Chemistry - A Revision Course & Explicit Biology - A Revision Course). You can now get a free copy of excerpt of the book in pdf. Interested prospective JAMBite writing Chemistry/Biology should send me a mail to methyldelene@yahoo.com with the subject, FREE EXPLICIT CHEMISTR/BIOLOGY PDF.

N.B: Please don't drop your e-mail address here in other not to derail this thread. Goodluck!

adebayour26:
Mr DelePhd, Thank u for this piece, it will definitely help in this work.

You are most welcome!

I did something similar to this early this year before Nairaland was hacked. The thread was based on the book, Explicit Biology, which to my knowledge is the best textbook for JAMB biology. As a teacher,it is the textbook that I use to teach my JAMB students. According to the author, O.J. Olaoye, he said,

The JAMB-UTME biology syllabus is divided into five sections and questions are usually weighted as shown below:

Section A: Variety of organisms – 7-9 questions
Section B: Form and Function – 18-20 questions
Section C: Ecology – 9-11 questions
Section D: Heredity and Variation –4- 5 questions
Section E: Evolution – 4- 5 questions
Total number of questions = 50

To the table of content:


SECTION A: PROPERTIES OF MATTER


CHAPTER 1: SEPERATION OF MIXTURES AND PURIFICATION OF CHEMICAL SUBSTANCES

Pure and Impure Substances
Chemical and Physical Changes
Separation Processes

CHAPTER 2: CHEMICAL COMBINATION

Stoichiometry
Laws of Chemical Combination
Gay Lussac’s Law of Combining Volumes
Avogadro’s Law and The mole Concept
Chemical Symbols and Formulae
Equations and Their Uses

CHAPTER 3: KINETIC THEORY OF MATTER

Application of the Theory to Explain the Nature of Solids, Liquids and Gases
Diffusion of Gases
Gas Laws

CHAPTER 4: ATOMIC STRUCTURE AND BONDING

The Concept of Atoms, Molecules and Ions
Atomic Structure, Electron Configuration, Atomic Number, Mass Number and Isotopes
The Periodic Table and Periodicity of Elements
Chemical Bonding
Shapes of Simple Molecules
Nuclear Chemistry

CHAPTER 5: AIR

The Usual Constituents
Proportion of Oxygen in Air
Uses of the Noble Gases

CHAPTER 6: WATER

Hard and Soft Water
Purification of Town Water Supplies
Water of Crystallization

CHAPTER 7: ENVIRONMENTAL POLLUTION

Chemical Pollutants
Air Pollution
Water Pollution
Soil Pollution

CHAPTER 8: SOLUBILITY

An Unsaturated, Saturated and Supersaturated Solution
Solubility Curves and Simple Deductions from them
Solvents for Fats, Oil and Paints and their Use for the removal of Stains
Suspensions and Colloids

CHAPTER 9: ACIDS, BASES AND SALTS

General Characteristics and Properties of Acids, Bases and Salts
Acid / Bases Indicators, Basicity of Acids, Types of Salts
Quantitative Comparison of Conductance of Molar Solutions Strong Acids and Bases
pH as a Scale of acidity
Acid / Base Titration


SECTION B: REDOX / ELECTROCHEMISTRY


CHAPTER 10: OXIDATION AND REDUCTION

Oxidation and Reduction in Terms of Oxygen and Removal of Hydrogen
Oxidation and Reduction in Terms of Electron Transfer
Use of Oxidation Numbers

CHAPTER 11: ELECTROLYSIS

Electrolytes and Non-electrolytes
Factors Affecting Discharge of Ions at the Electrodes
Faraday’s Laws of Electrolysis
Uses of Electrolysis
Electro-chemical Cells, Redox Series, Half Cell Reactions and Electrode Potential
Corrosion as an Electrolytic Process


SECTION C: CHEMICAL KINETICS


CHAPTER 12: ENERGY CHANGES

Energy Changes Accompanying Physical and Chemical Changes
Simple Calculations Involving Chemical Reactions
Entropy as Order / Disorder Phenomenon
Spontaneity of Reactions

CHAPTER 13: RATE OF CHEMICAL REACTION

Factors affecting the rate of Chemical Reaction
Activation Energy

CHAPTER 14: CHEMICAL EQUILIBRIUM

Reversible Reactions
Factors Governing the Equilibrium Position
Dynamic Equilibrium and Le Chatelier’s Principle
Equilibrium Constant


SECTION D: DESCRIPTIVE CHEMISTRY OF ELEMENTS


CHAPTER 15: NON-METALS AND THEIR COMPOUNDS

Hydrogen
Halogens
Oxygen
Sulphur
Nitrogen

CHAPTER 16: CARBON AND ITS COMPOUNDS

CHAPTER 17: METALS AND THEIR COMPOUNDS

Principles of the Extraction of Metals
Alkali Metals e.g. Sodium
Alkaline Earth Metals e.g. Calcium
Aluminium
Tin
Transition Metals e.g. Iron and Copper
Alloys

SECTION E: ORGANIC CHEMISTRY


CHAPTER 18: ORGANIC CHEMISTRY

Aliphatic Compounds
Petroleum
IUPAC Nomenclature
Isomerism
Formula of an Organic Compound
Aromatic Compounds
Alkanols
Alkanoic Acids
Alkanoates, Fat and Oil
Alkanals and Alkanones
Amines
Carbohydrates
Giant Molecules and Polymerization

The preface of the book clearly stated the intent of the author. I teach Chemistry and this book has now become my lecture note. Remember, this is the same guy that wrote Explicit Biology. His books are the best I've seen on JAMB Biology and now Chemistry.

PREFACE
The idea to write a text like this came in the year 2005 when I was preparing some students for SSCE/JAMB examination. I would solve all past questions relevant to the topics in review with my students in a logical sequence. I reckoned that there should be a text in Chemistry written with such a style for an effective and easy preparation but there was none. However, there were already two classical books, ‘Integrated Mathematics’ and ‘The Science Physics’ both written by Afolabi J.R using this beautiful style I thought about. So, I took the challenge to write Explicit Chemistry.

Explicit Chemistry epitomizes my time-tested pedagogy of preparing students to perform excellently in their examinations for the last one decade. It is a robust revision text book that is rich in notes, questions and answers presented in a simple but effective style with the SSCE/JAMB syllabus in perspective through the chapters.

The purpose of this book is to assist student prepare adequately for their examination with confidence as I have come to the conclusion during the time of writing this book that examination preparation without solving the past questions as treated in this book is largely inchoate and could mean poor preparation. My observation is that questions are spread in a particular pattern every year across the five sections that I have divided this book in the content pages. They are as follows:

SECTIONS QUESTIONS
SECTION A: PROPERTIES OF MATTER 20 - 22
SECTION B: REDOX / ELECTROCHEMISTRY 3 - 4
SECTION C: CHEMICAL KINETICS 4 - 5
SECTION D: DESCRIPTIVE CHEMISTRY OF ELEMENTS 6 - 7
SECTION E: ORGANIC CHEMISTRY 10 - 12
TOTAL 50 QUESTIONS

Therefore, it is my strong conviction that students and teachers will find this text useful, and the nine years I have put in writing will be worth the while.

Helpful criticisms and suggestions are welcome.
O. J OLAOYE
Lagos, Nigeria.
2014.

Good initiative. I strongly recommend this book to anyone writing JAMB Chemistry. No story!

Thanks guys, I've resolved it. I should have used my other phone number.Any batch 4 candidate? Hit me up on whatsapp 08138621817

Oluchi Umelo:
Ur gsm number is not wot they asked for, they said candidate no which is HPH xxxx

Frm the sms and mail i got from Workforce, i was asked to input my gsm number not candidate number. Also, i've been calling d helpline and it's always switched off

I'm having difficulties getting my details. i keep getting an error message whenever i input my gsm number hence i don't know my batch. Is anyone having this same issue?

Explicit Biology is in Ibadan. Check OAJ Bookshop @ Railway Shopping Plaza opposite Post-office, Dugbe. Ibadan.

SALIENT FEATURES OF THE BOOK EXPLICIT BIOLOGY- A Revision Course (2nd edition):
1. The book covers every topic in biology syllabus for UTME & POST-UTME; and can be covered within few days.
2. It is an ideal companion to the standard textbooks written on the subject.
3. There are objective questions on every topic mostly from JAMB (UME 1978-Date; PCE 1991-2009) and essay questions mostly from WAEC
(SSCE 1990-Date).
4. Analytical explanations to all the objective questions with simple language and student-friendly presentation.
5. Mock tests (2 sets of 50 questions each) for final assessment before the exam.
6. POST-UTME questions of some universities.
7. Mnemonics have been included to make difficult topics easier to memorize.
8. A section for diagrams, cycles, tables, and charts for better comprehension and easy learning.
9. Even a below average student can crack the exam after reading this book.
10. Glossary has also been included to master basic terms in biology.
11. It contains over 2,000 objective questions in all of which at least 80% of the exam questions will come from.

I understand that some people have challenges in getting Explicit Biology. Here are some places you can get it.
Lagos (or call 08069451567, 08024761905 for nearest location):
1. M. Adefila Bookshop- Ojuelegba Road 2. Rarebooks.com- 13 Onikoyi Street, Aguda, Surulere.
3. Adams College, Afariogun, Oshodi.
4. Adams College, Boladale, Oshodi.

Ile-Ife:
1. OAU Bookshop, Ile-Ife and Moro campus.
2. Apex Tutors, Ibadan Road.
3. Ayo Success Tutors, Ibadan Road.
4. Damico Tutors, Ede Road.

Benin City:
1. Aideyan Bookshop, Mission Road.
2. Solid Lectures, Iheya.
3. Mega Lectures, Ugbowo.
4. Pedagogue Lectures, Ugbowo.

I already mentioned Exam Time Chemistry Companion by A. Oluseyi Thomas. But I just saw Lamlad Chemistry, a year ago. It buttressed each topic with plethora of model questions just like Explicit Biology. You may go for it.

Hall of Fame: Ondo Electorates- For saying no to ACN-imposed Akerodolu with their votes.
Others include: Fashola, Aregbesola, Rochas and those who where shot by trigger-happy policemen during the fuel subsidy protests.

Hall of Shame: Goodluck Ebele Jonathan- For not inspiring confidence in Nigerians, for his many gaffes; and his cluelessness in moving the nation forward. Others include: Farouk Lawan, Hembe, Boko Haram

My reason for commenting on this thread is to give support to macmos to guide the prospective JAMBites, contrary to your perception. That said, from my experience in preparing students for JAMB over the years, I have come to the conclusion that questions are recycled. Of course they may not be words-for-words.
Again, contrary to your claim, I can show you more than five questions that were lifted from the past questions in biology (2012) words-for-words; and several others that were paraphrased. However, I am not advocating craming of past questions but fervent solving of past questions is an element of effective preparation.
Therefore, I will recommend any book that address the syllabus with copious questions for practice and emphasis. That is why I recommended the books in the thread below, particularly:
Explicit Biology-A Revision Course (2nd Edition) by O.J. Olaoye and;
The Science Physics by Afolabi J.R
https://www.nairaland.com/850463/share-valuable-text-books-jamb-utme

The easiest way to score 250+ in JAMB is to start reading early and systematically with the syllabus. I make bold to say that if you can solve the entire past questions at least twice in all the subject, then you have nothing to fear.

However, it could be boring and tedious to do, but it is the best way to prepare. There are no new questions in the actual sense but modifications of past questions.

In view of the above, here are some books writen in cognisance of above fact:

1. Biology- "Explicit Biology- A Revision Course, GCE, SSCE, JAMB (UTME) & POST-UTME (2nd Edition), by O.J. OLAOYE
https://www.nairaland.com/998625/how-study-distinction-biology-exam

2. Others are:
https://www.nairaland.com/850463/share-valuable-text-books-jamb-utme

Here is the new edition of Explicit Biology. It's a must read for prospective 'JAMBITES'!!!

HOW TO STUDY TO PASS BIOLOGY EXAM WITH EASE!
Biology is a prerequisite subject in the O’level exam. All candidates, regardless of your class, must take this subject and must have at least a credit pass in other to advance. For the prospective medical and life science undergraduates, biology is also a prerequisite subject. Here is how to increase your performance and have a high score in biology examination.
1. Start to prepare early: Given the enormity of the subject, it is imperative you start to prepare early in other to cover the syllabus on time and adequately.
2. Prepare adequately with the right books: There are many books out there on the subject but be sure it’s the right book. As a rule, check the syllabus requirement and the table of content of the book to see if they are related.
3. Prepare adequately with past questions: The past questions help you understand the pattern of the exam and also guide you on what to pay more attention to in the course of your study. NOTE: Questions are often repeated, as a matter of fact, new questions are modified from the past questions.
4. Use of mnemonics for easy assimilation: Mnemonics help to memorize and recall difficult topics easily. Develop personal mnemonics and see yourself improve.
5. Use of charts, tables and diagrams for easy assimilation: I make bold to say, without equivocation, that you cannot study biology effectively without charts, tables and diagrams. They improve your ability to assimilate and recall with ease.

Get a copy of the book, EXPLICIT BIOLOGY- A Revision Course (2nd edition) to see the full implementation of these techniques.
SALIENT FEATURES OF THE BOOK:
1. The book covers every topic in biology syllabus for GCE, SSCE, UTME & POST-UTME; and can be covered within few days.
2. It is an ideal companion to the standard textbooks written on the subject.
3. There are objective questions on every topic mostly from JAMB (UME 1978-Date; PCE 1991-2009) and essay questions mostly from WAEC
(SSCE 1990-Date).
4. Analytical explanations to all the objective questions with simple language and student-friendly presentation.
5. Mock tests (2 sets of 50 questions each) for final assessment before the exam.
6. POST-UTME questions of some universities.
7. Mnemonics have been included to make difficult topics easier to memorize.
8. A section for diagrams, cycles, tables, and charts for better comprehension and easy learning.
9. Even a below average student can crack the exam after reading this book.
10. Glossary has also been included to master basic terms in biology.
11. It contains over 2,000 objective questions in all of which at least 80% of the exam questions will come from.

For bulk orders and inquiry about bookstores contact:
Pedagogue House on: 08069451567, 08024761905 or follow on facebook: Explicit Biology, twitter: @ExplicitBiology

rodeo0070:
Give me sometime pls. I'll come up with something cos I'm @ work. But is d symbol affecting the phone functions? If it doesn't I'll suggest you to let it be. I'll see wat can be done

With the symbol, it simply means there is earpiece in it i.e. the phone is "seeing" it. I cannot receive or make calls that way because I won't hear what the next person is saying neither will he/she hear me. Also I cannot play music. I used to listen to songs using my earpiece until they intentionally damaged the earpiece port at Computer village, thinking that will solve the problem.
Thanks for your concern.

rodeo0070:
I HOPE THIS HELPS
If you have problems with your HTC Touch Pro
2 smartphone, you may want to try to perform a
soft or hard reset.
A soft reset will reset the device without
clearing any data off of it. Simply remove the
rear cover of the device, then use the tip of the
stylus or a paper clip and insert it into the reset
button hole on the side of the device, next to the
slot for removing the battery.
If that doesn’t clear your problem or you just
want to wipe all data off the device easily, you
can perform a hard reset with these steps:
1. While the HTC Touch Pro 2 is off, press and
hold Talk/Send, End and Power until you see a
message on the screen about deleting all data.
2. Release the buttons after the message
appears.
3. Press the Volume Up button.

I have done the simple reset for about 5 times and have also had to clear the phone memory but all to no avail. It's still showing that ear piece is inserted.

My first HTC phone was HTC 9600 (I think). I bought a used one, which I used for over a year. It developed a fault and kept on showing that it's connected to power even when it's not; this lead to the eventual crashing of the phone.

Presently, I'm using HTC pro 2, which I bought sometime in March this year. I'm afraid it going the way of my first HTC, it kept showing the ear-piece, even when I've unplugged it. I took it Computer village, the guy damaged the ear piece port yet it's still displaying the ear piece. Right now, it's of no use, except for browsing because I can't make or receive calls with it.

I'll appreciate any help. Thanks in advance.

@ OP, a fantastic observation!
Fidelity bank @ Computer village is a good example, dominated by Igbos.

I once believed some of the things said here but surprised nobody has mentioned this, when you stand while eating the food will go to your legs.lol

Can you share some details like: how many questions are in each sections, time, the comprehension etc. Thanks in advance.

Thank you Dami. God bless.

Please, I also need the study pack. E-mail: methyldelene@yahoo.com

Almost all the northern governors, especially Governor Ibrahim Gaidam of Yobe state.

My advice to propective undergraduates writing the POST UTME exam is to continue to solve JAMB PQ. From my experience most schools copy their questions from JAMB PQ. If you're doing biology, I think the book, Explicit Biology will prove valuable. Check out the fan page on facebook. Go for it. m.facebook.com/profile.php?v=feed&filter=13&id=279198762134044&refid=17

I hope they extend the deadline anyway.

If you are writing Biology in this coming JAMB(UTME). You need to read Explicit Biology. I wish you all success.


The monograph “Explicit Biology: A Revision Course” for UTME, POST-UTME and other related examinations written by O.J. Olaoye is a complementary text to the various textbooks that have been written in the subject area. The book has five sections and twenty seven chapters on all the biology topics.
This book has become timely in view of the poor results that are being witnessed in the UTME examination especially in the sciences and mathematics, biology inclusive. These majorly are due to poor or inadequate access to good study materials.
Each chapter has annotated topics followed by copious specimen questions on some past UTME and POST–UTME examination, for practice and emphasis. The topics in each chapter are adequately treated and with clarity. The illustrations are simple but effective.
The author has done a lot of work and put in efforts to come out with a very readable and useful text. It is highly recommended to all the students aspiring to undertake the UTME and POST-UTME examination, in order to improve highly their chances of success.
Prof. O.A. Sofola
B.Sc, M.Sc, M.B.B.S (Lagos), Ph.D (Leeds), FAS (Nig.)
Professor of physiology,
College of Medicine, University of Lagos
Former Vice Chancellor, OOU, Ago- Iwoye. Ogun State.

JAMB (UTME) and POST-UTME BIOLOGY just got simplified with EXPLICIT BIOLOGY. call 08069451567, 08024761905 (Lagos); 08036871967 (Benin). Follow on facebook: Explicit Biology and twitter: @ExplicitBiology

I hope they extend the deadline anyway.

If you are writing Biology in this coming JAMB(UTME). You need to read Explicit Biology. I wish you all success.


The monograph “Explicit Biology: A Revision Course” for UTME, POST-UTME and other related examinations written by O.J. Olaoye is a complementary text to the various textbooks that have been written in the subject area. The book has five sections and twenty seven chapters on all the biology topics.
This book has become timely in view of the poor results that are being witnessed in the UTME examination especially in the sciences and mathematics, biology inclusive. These majorly are due to poor or inadequate access to good study materials.
Each chapter has annotated topics followed by copious specimen questions on some past UTME and POST–UTME examination, for practice and emphasis. The topics in each chapter are adequately treated and with clarity. The illustrations are simple but effective.
The author has done a lot of work and put in efforts to come out with a very readable and useful text. It is highly recommended to all the students aspiring to undertake the UTME and POST-UTME examination, in order to improve highly their chances of success.
Prof. O.A. Sofola
B.Sc, M.Sc, M.B.B.S (Lagos), Ph.D (Leeds), FAS (Nig.)
Professor of physiology,
College of Medicine, University of Lagos
Former Vice Chancellor, OOU, Ago- Iwoye. Ogun State.

JAMB (UTME) and POST-UTME BIOLOGY just got simplified with EXPLICIT BIOLOGY. call 08069451567, 08024761905 (Lagos); 08036871967 (Benin). Follow on facebook: Explicit Biology and twitter: @ExplicitBiology

The highest I have seen is 302, my class-mate who eventually finished with 4.67/5.00 CGPA.
I can recommend the book, [b]Explicit Biology by O.J Olaoye. This book will surely increase your performance in the JAMB (UTME) and POST-UTME.[/b]

The monograph “Explicit Biology: A Revision Course” for UTME, POST-UTME and other related examinations written by Mr. O.J. Olaoye is a complementary text to the various textbooks that have been written in the subject area. The book has five sections and twenty seven chapters on all the biology topics.
This book has become timely in view of the poor results that are being witnessed in the UTME examination especially in the sciences and mathematics, biology inclusive. These majorly are due to poor or inadequate access to good study materials.
Each chapter has annotated topics followed by copious specimen questions on some past UTME and POST –UTME examination, for practice and emphasis. The topics in each chapter are adequately treated and with clarity. The illustrations are simple but effective.
The author has done a lot of work and put in efforts to come out with a very readable and useful text. It is highly recommended to all the students aspiring to undertake the UTME and POST-UTME examination, in order to improve highly their chances of success.
Prof. O.A. Sofola
B.Sc, M.Sc, M.B.B.S (Lagos), Ph.D (Leeds), FAS (Nig.)
Professor of physiology,
College of Medicine, University of Lagos
Former Vice Chancellor, OOU, Ago- Iwoye. Ogun State.

JAMB (UTME) and POST-UTME BIOLOGY just got simplified with EXPLICIT BIOLOGY. call 08069451567, 08024761905 (Lagos); 08036871967 (Benin). Follow on facebook: Explicit Biology