WAEC CHEMISTRY OBJECTIVE 2024 PAST QUESTION

WAEC CHEMISTRY OBJECTIVE 2024 PAST QUESTION
WAEC CHEMISTRY OBJECTIVE 2024 PAST QUESTION


Do you need the West African Senior School Certificate Examination (WASSCE) CHEMISTRY Past Questions for Free? If Yes, you are in the right place, we provide complete WAEC past questions for download on our website.

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About WAEC

Full meaning of WAEC

W - West
A - Africa
E - Examination
C - Council

What is WAEC

The West African Examinations Council (WAEC) is an organization established by legislation to determine whether examinations are required for the public welfare in the English-speaking countries of West Africa., to administer the exams, and to issue certificates that are on par with those issued by comparable examining authorities internationally. The West African Examinations Council was founded in 1952, and its mission is to be a premier examination organization that advances the educational objectives of all its stakeholders.

For more info, you can visit: WAEC official website

How to check WAEC Result

To check your WAEC result, check the easy steps given in this post where we explained in detail step by step how you can check your WAEC result online. Click here to check easy steps to check WAEC result online

About CHEMISTRY

   Chemistry is a science subject that researches elements and compounds' properties, compositions, and structures, as well as the way they can change and the energy that is released or absorbed during those changes.

   Chemistry is one of the important subjects you have to pass as a science student. Remember for you to pass WAEC, you have to treat essential topics. Chemistry has a lot of definitions that differ as a result of the source but know that every definition still has the same meaning or passes the same information. 

   Some of the world's great Chemist are Marie Curie, Dmitri Mendeleev, John Dalton, Amedeo Avogadro, Alfred Noble, Robert Boyle, Ernest Rutherford, William Ramsay, Alice Ball, Harold Urey, Rosalind Franklin, Mario Molina, Louis Pasteur.

Important Topics In CHEMISTRY

So here are the important topics in the Chemistry needed to pass WAEC:

  • Stoichiometry
  • Laws of definite and multiple proportions
  • Law of conservation of matter
  • Gay Lussac’s law of combining volumes, Avogadro’s law
  • Chemical symbols
  • Formulae, equations and their uses
  • Relative atomic mass
  • The mole concept and Avogadro’s number
  • Chemical combination
  • Kinetic theory of matter and Gas Laws
  • Melting
  • Vapourization
  • Boiling
  • Freezing
  • Solubility
  • Environmental Pollution
  • Acid, Bases and Salts
  • Oxidation and Reduction
  • Electrolysis
  • Chemistry and Industry
  • Metals and their compounds
  • Nitrogen,
  • Energy changes
  • Organic Chemistry
  • Chemical Equilibrium
  • Chemical Thermodynamics
  • Chemical Bonds

Importance of Past Questions

Past questions are important in your studies to help you have an insight of how the exam looks like and how to face questions related to different topics covered in the subject examination to be taken

Excerpts From WAEC CHEMISTRY OBJECTIVE 2024 Past Questions


1. Which of the following gases could be collected by downward displacement of air ? 
    A. Chlorine 
    B. Hydrogen 
    C. Hydrogen chloride
    D. Sulphur(IV) oxide 

2. Which of the following substances has the lowest boiling point ? 
    A. Aqueous sodium chloride 
    B. Ethanol 
    C. Tetrachloromcthanc 
    D. Water 

3. The branch of science that deals with the nature and properties of substances and how one substance         can be converted to another is known as ?
    A. biology. 
    B. chemistry. 
    C. geography. 
    D. physics. 

4. The electron configuration 1s22s22p2x contravenes the ?
    A. Pauli’s exclusion principle. 
    B. Aufbau’s principle. 
    C. Octet rule. 
    D. Hund’s rule. 

5. The oxidation number of chromium in Na2Cr2O7 is ? 
    A. 12. 
    B. 16.  
    C. 17. 
    D. 112. 

6. The most important orc of aluminium is ?
    A. bauxite. 
    B. haematite. 
    C. magnetite. 

7. Bases normally 
    A. arc corrosive. 
    B. turn litmus paper from blue to red. 
    C. turn litmus paper from red to blue. 
    D. arc non-metal oxides. 

8. The product of the reaction between ethanol and excess acidified K2Cr2O7 is ?
    A. CH2 = CH2
    B. CH3OCH3
    C. CH3COOH. 
    D. CH3CH3

9. The product formed when concentrated sodium chloride solution is electrolysed using carbon                 electrodes is ?
    A. chloride water. 
    B. hydrochloric acid. 
    C. sodium hydroxide. 
    D. sodium oxochloratc (I). 

10. Which of the following statements about ammonium salt is correct ? It 
    A. dissolves in water to form solution of pH > 7. 
    B. dissolves in water to form solution of pH< 7. 
    C. docs not decompose on heating. 
    D. is insoluble in water.  

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NAME:WAEC CHEMISTRY OBJECTIVE 2024
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