JAMB Bing That 2024 Chem Test: CBT Tips -How o Pass Jamb cbt 2024 Chemistry Question
INSTRUCTIONS: Answer All The Questions
===========================
(1ai)
TABULATE
Burette reading(cm³); 1 | 2 | 3
Final reading; 21.50 | 22.40 | 32.20
Initial reading; 2.50 | 4.00 | 13.60
Volume of Acid used; 19.00 | 18.40 | 18.60
(1aii)
Average volume of acid used
= 18.40 +18.60/2
= 18.50cm³
(1bi)
Concentration of B in mol/dm²
Using;
CAVA/CBVB= nA/nB
(0.086×18.50) /CBx20.00 = 2/1
CB = 0.086×18.50/2×20.00
CB = 0.039775mol/dm³
(1bii)
Number of moles of I₂
= Volume x Molarity
= 1 x 0.06
= 0.06moles
(1biii)
gram concentration of hydrocarbon
= 4.8/1 = 4.8g/dm³
Molarity = gram conc./Molar mass
= 4.8/80
= 0.06mol/dm³
Molar concentration = 0.06mol/dm³
===========================
(2i)
TABULATE
-TEST-
Sample(aq) + NH₃(aq) in drops then in excess
-OBSERVATION-
Blue precipitate
Precipitate dissolves in excess
-INFERENCE-
Cu²+ Indicated
Cu²+ confirmed
(2ii)
-TEST-
Sample(aq) + NaOH(aq) in drops then in excess
-OBSERVATION-
White gelatinous precipitate
Precipitate soluble
-INFERENCE-
Al³+ indicated
Zn²+ confirmed
(2iii)
-TEST-
Sample(aq) + AgNO₃(aq) in drops then in excess
Solution(iii) + excess NH₃(aq)
-OBSERVATION-
White precipitate formed
Precipitate soluble in excess NH₃(aq)
-INFERENCE-
Cl- indicated
Cl⁻ confirmed
(2iv)
-TEST-
Sample(aq) + HCl(aq)
-OBSERVATION-
Rapid effervescence gad evolved turned lime water milky
-INFERENCE-
CO₃²- indicated
CO₃²⁻ confirmed
(2v)
-TEST-
Sample(aq) + heat
-OBSERVATION-
Reddish-brown gas evolved
-INFERENCE-
Gas is NO₂
NO₃⁻ confirmed
(2vi)
-TEST-
Sample(aq) + NaOH(aq) + heat
-OBSERVATION-
Pungent smelling gas evolved which turned moist red litmus paper blue
-INFERENCE-
Gas is NH₃ and NH₄⁺ indicated
NH₄⁺ confirmed
===========================
(3a)
(i) Fehling’s solution
(ii) Ferric chloride
(iii) Million’s reagent
(iv) Ammoniacal solution of copper(I)chloride
(3b)
This can be done by pouring hot water on the neck of the bottle which loosens the stopper by weakening the inter-molecular forces in between.
(3ci)
Equivalence point is the point in a titration where the amount of titrants added is enough to completely neutralize the analyst solution.
(3cii)
(i) Spatula; It is used for scraping, transferring, or applying powders and paste-like chemicals or treatments
(ii) Crucible; It is used to burn, melt or mix solid chemical compounds over a burner.
(iii) White tile; It is placed underneath a conical flask to aid with the ease of spotting the end point colour change.
(3ciii)
(i) This is because distilled water change the concentration of the initial solution
(ii) In order to measure the amount of solution added in or drained out
(3di)
(i) Ethene
(ii) Butyne
(3dii)
N₂ –> CO₂ –> NH₃
===========================
COMPLETED.
You’re a chem whiz. You’ve been studying hard, reviewing formulas, balancing equations – you got this. But now it’s go time. The 2024 JAMB chemistry CBT is here and it’s normal to feel some nerves. Just breathe. You’ve prepared and you’re ready to crush it. This test is important but it’s only one step in your journey. Use these proven tips to stay calm, tackle each question methodically, and JAMB that chem CBT. You’ve put in the work and you’re going to do great. Believe in yourself. Show that test who’s boss and let’s get this chemistry degree! Now go in there and own it.
Understanding the JAMB CBT Format for Chemistry
Know the Structure
The JAMB CBT for chemistry has a very specific structure you need to understand. It will contain 40 multiple-choice questions divided into sections. The sections test different areas of chemistry like thermodynamics, kinetics, organics, and environmental chemistry. Be prepared for a mix of calculation-based questions as well as theory.
Each question has four options, and you need to choose the best answer. Some questions may require multiple steps to solve, so make sure you show your work in the provided space. Work as efficiently as possible since you only have one hour to complete the entire test.
Make Educated Guesses
If you get stuck on a question, don’t leave it blank – make an educated guess. Eliminate options that are clearly incorrect, then choose from the remaining choices. Even if you can’t determine the exact answer, guessing will give you a chance to get it right. Leave yourself time at the end to review and confirm your choices.
Review Key Concepts
To prepare for the chemistry CBT, review all the major concepts you’ve learned. Know how to calculate molar mass, name compounds, describe the properties of states of matter, and explain chemical equations. Brush up on periodic trends, VSEPR theory, and stoichiometry. The more comfortable you are with the fundamentals, the easier the exam will feel.
Practice plenty of sample questions and timed mock tests. This will familiarize you with the format and experience of the CBT so there are no surprises on exam day. Staying calm and focused is key – believe in yourself and the knowledge you’ve gained. With the right preparation, you’ve got this!
The JAMB CBT for chemistry may seem daunting, but by understanding the format, making educated guesses, and reviewing key concepts, you can feel confident walking into the exam. Stay positive, work efficiently, and do your best – that’s all you can ask of yourself. Now get studying and go show that chemistry test who’s boss!
Studying Smart: Tips to Ace the 2024 Chem CBT
Focus your studying
With less than two years until the exam, now is the time to develop good study habits. Start by reviewing what will actually be on the test. The chemistry CBT focuses on general chemistry topics like atomic structure, stoichiometry, and thermodynamics. Review past CBTs to determine which areas you need to focus on. Don’t waste time on extraneous information.
Practice questions
One of the best ways to prepare for the CBT format is by practicing with questions in the same style. You can find official CBT practice materials on the exam board website. Work through questions from all topics, timing yourself to get used to the pacing. Review explanations for any questions you get wrong.
Study regularly
Cramming at the last minute won’t cut it for this exam. Aim to study chemistry for at least 30-60 minutes, 3 times a week. This could be reviewing notes, working practice problems, re-reading examples in your textbook, or watching tutorial videos online. Studying regularly will keep the knowledge fresh in your mind and prevent you from feeling overwhelmed as the exam approaches.
Get help when you need it
Don’t feel like you have to go through this alone. Form a study group with other students, ask your teacher or tutor for extra help, or hire a private chemistry tutor. Having support from others can help keep you accountable and make studying feel less tedious. Ask lots of questions – there’s no such thing as a dumb question when preparing for an important exam!
Take breaks when needed
While regular studying is important, it’s equally important to avoid burnout. Take short breaks when you feel your concentration waning. Even taking a quick walk around the block can help rejuvenate your mind. Try to avoid having marathon study sessions right before the exam, get plenty of rest, and take time for your hobbies and social life. You’ll feel refreshed and ready to do your best on exam day.
Following these tips will help ensure you are studying efficiently and staying in the right mindset. Keep at it, stay determined, and you’ll be ready to jamb that chemistry CBT!
Mastering Chemistry Concepts and Calculations
To master chemistry concepts, start with the basics. Review core ideas like atoms, elements, compounds, and molecules. Understand how they relate to each other. For example, atoms combine to form elements, and elements or molecules combine to form compounds.
Learn the Periodic Table
Memorize the periodic table of elements. Know the groups, periods, atomic number, and atomic mass of each element. Understand trends like how atomic size decreases across a period and increases down a group. Know the characteristics of metals, nonmetals, and metalloids.
Understand Chemical Bonds
Learn how elements bond to form compounds. Know the differences between ionic bonds (between metals and nonmetals), covalent bonds (between nonmetals), and metallic bonds (in metals). Understand how to determine the number of valence electrons in an atom and how that affects its bonding behavior.
Master Stoichiometry
Stoichiometry allows you to calculate the amounts of substances involved in chemical reactions. You need to know mole ratios, molar mass, and conversion factors between moles, grams, and particles. Be able to balance chemical equations and use them to relate moles of reactants to moles of products. Practice dimensional analysis to solve stoichiometric problems.
Learn Reaction Types
Know the characteristics of synthesis, decomposition, single replacement, double replacement, acid-base, and oxidation-reduction reactions. Understand how to predict the products of each reaction type based on the reactants. Recognize how catalysts speed up chemical reactions by lowering the activation energy barrier.
With practice, these chemistry concepts and calculations will become second nature. Focus on understanding the relationships between ideas rather than just memorizing facts. Work through plenty of examples and practice problems to apply what you’ve learned. If you get stuck, don’t be afraid to ask your teacher or tutor for help. With hard work and persistence, you’ll gain a solid understanding of chemistry fundamentals.
Practicing With Past JAMB CBT Chemistry Questions
To ace the JAMB CBT chemistry test, practicing with past questions is key. The exam format and style of questions rarely change from year to year, so past papers are the best representation of what you’ll face on exam day.
Focus on the last 3-5 years of past questions
Questions from recent years are the most representative of the current exam format and curriculum. While chemistry concepts themselves don’t change much over time, the way questions are phrased and the options provided can evolve. Stick to papers from 2017 onward to prepare for your 2024 test.
Review the question types
Familiarize yourself with the different formats of questions you’ll encounter, like multiple choice, fill in the blanks, matching, and short answer questions. Know how to approach each type strategically. For multiple choice, eliminate incorrect options. For fill in the blanks, use the context clues in the sentence or question to deduce the best option. Short answer questions require concise yet complete responses.
Time yourself
The JAMB CBT chemistry test is timed, so practicing under timed conditions is essential. Most students will have 2 hours to complete around 50-70 questions. Time yourself to complete full past papers in order to build up your speed and efficiency. Try starting with 1 hour at first, and work your way down to the actual exam time conditions.
Review explanations for questions you get wrong
Don’t just glance at the answers to questions you get incorrect—study the explanations to fully understand why your choice was wrong and the correct choice was right. Look for any patterns in the types of questions you tend to miss, and focus your studying on those chemistry topics. With consistent practice, you’ll notice your scores improving over time!
Staying up to date with the latest exam formats and curriculum, focusing on the most recent past papers, and simulating the actual testing conditions will prepare you for anything the JAMB CBT chemistry test throws at you. You’ve got this—now get practicing!
Top 10 Frequently Asked Questions About JAMB Chemistry CBT
How many questions are there in JAMB Chemistry?
On average, you can expect around 50-60 multiple-choice questions in the Chemistry section of JAMB UTME. The questions will cover all major areas of senior secondary school Chemistry syllabus. Each question carries one mark.
What topics are most important in JAMB Chemistry?
Some of the most important and frequently tested topics in JAMB Chemistry are:
- Atomic structure
- Chemical bonding
- States of matter
- Chemical equilibrium
- Acids and bases
- Electrochemistry
- Organic chemistry
- Periodic table and periodicity
Spend more time studying these areas. Know them inside out.
How can I pass JAMB Chemistry comfortably?
Here are some useful tips to help you pass JAMB Chemistry:
- Start preparing early. Don’t cram.
- Focus on understanding concepts and theories, not just memorizing.
- Solve plenty of past questions. This will expose you to the exam format and scope.
- Have a good grasp of calculations and numerical problems.
- Practise regularly. Take timed mock tests to build up your speed and accuracy.
- Study with friends. Discuss challenging topics and quiz each other.
- Ask your teacher(s) or mentor(s) to clarify any areas of difficulty.
- Get enough rest the night before the exam. You need to be alert and focused.
If you follow these tips diligently, you will significantly increase your chances of excelling in the JAMB Chemistry exam. Stay positive, you’ve got this!
What are the types of questions I can expect?
The bulk of the questions will be multiple-choice objective questions. However, you may also get a few short answer questions where you have to fill in the blanks or provide the missing step(s) in a calculation. The questions are usually structured to test your conceptual understanding, analytical and critical thinking skills related to Chemistry. Some questions may also come in form of scenarios and word problems to assess your ability to apply knowledge to real-world situations.
Conclusion
So there you have it – some solid tips to help you ace that 2024 JAMB chemistry CBT. While it may seem daunting now, preparing smart and staying focused will pay off when you walk into that test center feeling confident and ready to rock it. Trust the process, believe in yourself, and remember that you’ve got this! Visualize that celebratory dance you’ll do when you get your target score. The future is yours to shape, so study hard and go into that exam ready to seize the day. You can do it – now get out there and start prepping!
