2024 WAEC GCE FIRST SERIES (JANUARY) CHEMISTRY: 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS (8510)
2023 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS Password/Pin/Code is 8510. You can use it to view 2024 Chemistry Answers A day before the exam.
Welcome to official 2024 Chemistry WAEC GCE First Series (January) answer page. We provide 2024 Chemistry WAEC GCE First Series (January) Questions and Answers on Essay, Theory, OBJ midnight before the exam, this is verified & correct WAEC GCE First Series (January) Chems Expo. WAEC GCE First Series (January) Chemistry Questions and Answers 2024. WAEC GCE First Series (January) Chems Expo for Theory & Objective (OBJ) PDF: verified & correct expo Solved Solutions, 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS. 2024 WAEC GCE First Series (January) EXAM Chemistry Questions and Answers
Questions Students ask about 2024 WAEC GCE FIRST SERIES (JANUARY) CHEMISTRY: 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS (8510)
- How to get 2024 Chemistry WAEC GCE First Series (January) QUESTION AND ANSWERS before the exam? To get 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS midnight before the exam, all you need to do is to visit expocode.net with the pin sent to you by the admin and login. With the pin, you can have a full access to 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS
- When do I get Verified 2024 Chemistry WAEC GCE First Series (January) QUESTION AND ANSWERS? You will get 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS a night to the exam because Chemistry is an important subject.
- After using 2024 Chemistry WAEC GCE First Series (January) ANSWERS, How many am I assured of in Chemistry? You will score between 7As - 9As in Chemistry if you write verbatim 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS.
- How verified is your 2024 Chemistry WAEC GCE First Series (January) ANSWERS? Our 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS is 100% verified and legit and it is worthy to be trusted because it from expocode.net which is the most trusted website for exam runs in Nigeria.
- Where do I get 2024 Chemistry WAEC GCE First Series (January) QUESTION AND ANSWERS? You can get 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS only from expocode.net
- Is the answers on this page actually the main 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS? No, This is 2023 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS, to get 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS, you need to subscribe with us by texting or WhatsApping us.
- How do I subscribe for 2024 Chemistry WAEC GCE First Series (January) Questions & ANSWERS? To subscribe for 2024 Chemistry WAEC GCE First Series (January) Questions & ANSWERS, Message 08069228752 stating that you need 2024 Chemistry WAEC GCE First Series (January) Questions & ANSWERS a day to the exam.
- Go to expocode.net official website website for Chemistry subscription: You will need to visit expocode.net official subscription page for WAEC GCE First Series (January) Chemistry at https://expocode.net/sub/
- Grab active expocode.net WhatsApp number and chat the admin for Chemistry WAEC GCE First Series (January) subscription: expocode.net has two phone numbers for whatsapp, get the active one and chat them on whatsapp for Chemistry subscription
- Drop your subscription details: As you open whatsapp chat with expocode.net drop your MTN recharge card and subject like this; subject: Chemistry, MTN Card: 746473829383738, then wait for them to confirm your payment and send you the Chemistry pin and whatsapp group link.
How to subscribe for 2024 WAEC GCE First Series (January) Chemistry (8510) Questions and Answers?
This is how to subscribe for 2024 WAEC GCE First Series (January) Chemistry (8510) Questions and Answers expo and get the answers before the exam. If you want to access WAEC GCE First Series (January) Chemistry (8510) before the exam, follow this detailed steps
(1ai)
Mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12. its symbol is MOL
(1b)
(CHOOSE ONLY ONE)
(i) Incomplete combustion i.e less oxygen for combustion produces a mix of carbon, carbon dioxide, carbon monoxide and water.
(ii) Carbon monoxide (CO) & Carbon particles (soot)
(1c)
(i) Dispersion (weak).
(ii) dipole-dipole (medium).
(iii) hydrogen (strong).
(1d)
Brownian motion refers to the random movement displayed by small particles that are suspended in fluids. It is commonly referred to as Brownian movement”. This motion is a result of the collisions of the particles with other fast-moving particles in the fluid.
(1e)
Condensation Polymerization: It is form of a step-growth polymerization where smaller molecules or monomers react with each other to form larger structural units (usually polymers) while releasing by-products such as water or methanol molecule. The by-products are normally referred to as condensate.
(1f)
(i) 2-methyl propane.
(ii) 3-Chlorobutanoic acid.
(1g)
(i) The oxidation number of iodine in the potassium periodate molecule is 7.
This molecule is ionic which means that the periodate ion has a charge of 1- in order to balance the 1+ charge on the potassium ion.
Since the 'copied from e x p o c o d e . n e t free' oxygen molecules combine for an oxidation number of 8 (4×2=8) this gives us a total oxidation number of 8−1=7
(ii) Let, X be the oxidation state of bromine in HBrO
+1 + X + (-2) = 0
1 + X − 2 = 0
X − 1 = 0
X = + 1
Hence, the oxidation state of Br in HBr03 is +1
(1h)
(i) Cathode rays consist of negatively charged particles. When cathode rays are subjected to an electrical field, these get deflected towards the positively charge plate i.e. Anode. We know that a positively charged body would attract only a negatively charged body, therefore the particles of cathode rays carry negative charge. Cathode rays also get deflected when these are subjected to a strong magnetic field. The electrons in the cathode rays would deflect toward the positively charged plates, and away from the negatively charged plates.
(ii) It shows that cathode rays consist of material particles having mass and velocity.
This is 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS No. 1
(3ai) Electrode potential is defined as the potential of a cell consisting of the electrode acting as a cathode and the standard hydrogen electrode acting as an anode. Reduction always takes place at the cathode, and oxidation at the anode.
(3aii) It is used to measure the relative strength of different oxidants and reactants.
Standard Cell Potential Value is calculated for various chemical species.
Used to predict if certain chemical species will react with each other and to what extent that reaction will be.
It is used to predict the point of equilibrium in a chemical reaction.
(3bi) Law of Compound Composition states that in any particular chemical compound, all samples of that compound will be made up of the same elements in the same proportion or ratio
(3ci) Na>Mg>Al
(3cii)
I) Na
II) Al
(3d) Addition of chloride ions to a suspension of PbCl2 gives rise to soluble complex ions as shown :
PbCl2(s)+Cl−→[PbCl3]−(aq)
PbCl2(s)+2Cl−→[PbCl4]2−(aq)
(3ei)One of the main reasons for classifying organic compounds by their functional groups is that it also classifies their chemical behavior.
(3eii)Ethene gas, C2H4, reacts with water at high temperature to yield ethyl alcohol, C2H6O.
This is 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS No. 3
(4ai)
To start the process of preparation of oxygen in a laboratory, hydrogen peroxide is poured into a container that is conical in shape and contains some manganese oxide inside it. After that, the gas which comes out of it is collected in another container that is upside down and filled with water. Once the oxygen reaches the container filled with water, it pushes the water out of the container and the oxygen remains inside. This gas collecting container can also be substituted with a gas syringe to collect the oxygen produced by this method.
(4bii)
i) the bleaching action of sulphur (iv)oxide is temporary while that of chlorine is permanent
ii) the bleaching action of sulphur(iv)oxide is a reduction process while that of chlorine is oxidation
(4c)
i: downward delivery
ii: ammonia and hydrogen chloride gas
iii:high solubility (in ammonia)
4civ) The aim of the fountain experiment is to prove that HCI is highly soluble in water.
4cv)
i) because It is heavier than oxygen and covers the fire like a blanket which cut off the contact between the fuel and oxygen.
(ii) It can be used for extinguishing fire involving electrical equipments and inflammable materials like petrol.
4d)
(4NH)3(g) + SO2(g) –––> 4NO(g)+ (6H)2 O(l)
2NO(g) + O2(g) ––—> 'copied from e x p o c o d e . n e t free' 2NO2(g)
2H2O(l) + 4NO2(g) + O2(g) —––> 4HNO3(aq)
This is 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS No. 4
(5di)
Calcium & magnesium .
(5dii) Na2CO3+CaSO4→CaCO3+Na2SO4
5diii)
Water is a polar solvent and can therefore easily dissolve sodium chloride which is ionic while Oil, on the other hand, is non-polar and, hence cannot dissolve in water which is polar.
This is 2024 WAEC GCE First Series CHEMISTRY QUESTIONS AND ANSWERS No. 5
Welcome to official 2024 Chemistry WAEC GCE First Series (January) answer page. We provide 2024 Chemistry WAEC GCE First Series (January) Questions and Answers on Essay, Theory, OBJ midnight before the exam, this is verified & correct WAEC GCE First Series (January) Chems Expo
Name: expocode.net
Founded: 2010 (14 years)
Founder: Examcode
Headquarters: Borno, Nigeria
Official Website: https://expocode.net/
Official Contact: +2348069228752
Beware of Scammers.... Please always use 08069228752 for all your transactions to avoid being scammed.
NOTE: Any answer that does not have
badge can be chnaged, removed or updated anytime. The badge means that the
answers have
been verified 100% (if used exactly, you're to get nothing but A1) while without
the
badge means that the answer is still under verification.
If you're not in a hurry, please wait for answer to be verified before you copy.
Click on the drop down links to view answer under them.
Good Luck... Invite family and friends to expocode.net... We are the best and we post, others copy from us.
WAEC GCE 2024. Chemistry 3 answers
2024 waec Gce answers. Chemistry 2 & 1
2024 Neco Gce. Chemistry practical 1
2024 NABTEB GCE. CHEMISTRY ANSWERS.
Chemistry answers. Neco Gce 2024
JAMB Chemistry Answer
2024 WAEC GCE CHEMISTRY PRACTICAL ANSWERS
2024 WAEC CHEMISTRY PRACTICAL ANSWERS
2024 WAEC MAY/JUNE Chemistry Practical Answers