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JAMB and WAEC Chemistry questions: Organic compounds

72 questions with answers and explanations. Tap an option to check yourself.

AllJAMBWAEC
All topicsAcids, bases and salts · 58Air · 37Atomic structure and bonding · 59Chemical combination · 58Chemical equilibrium · 37Chemistry and industry · 35Electrolysis · 41Energy changes · 38Environmental pollution · 32Kinetic theory of matter and gas laws · 45Metals and their compounds · 47Non-metals and their compounds · 45Organic compounds · 72Oxidation and reduction · 41Rates of chemical reaction · 38Separation of mixtures and purification · 42Solubility · 36Water · 39

  1. Question 21· Organic compounds· JAMB

    Members of a homologous series

    Explanation and discussion

  2. Question 22· Organic compounds· JAMB

    Acidified potassium tetraoxomanganate(VII) is decolourised by

    Explanation and discussion

  3. Question 23· Organic compounds· JAMB

    The functional group of the alkanoic acids is

    Explanation and discussion

  4. Question 24· Organic compounds· JAMB

    The compound CH₃COOH is:

    Explanation and discussion

  5. Question 25· Organic compounds· WAEC

    The simplest organic compound is

    Explanation and discussion

  6. Question 26· Organic compounds· WAEC

    Long-chain hydrocarbons are broken into smaller, more useful molecules by

    Explanation and discussion

  7. Question 27· Organic compounds· JAMB

    Benzene undergoes mainly

    Explanation and discussion

  8. Question 28· Organic compounds· JAMB

    The alkaline hydrolysis of fats and oils (saponification) produces

    Explanation and discussion

  9. Question 29· Organic compounds· JAMB

    The reaction between an alcohol and a carboxylic acid produces:

    Explanation and discussion

  10. Question 30· Organic compounds· WAEC

    The functional group in alkanoic acids is

    Explanation and discussion

  11. Question 31· Organic compounds· JAMB

    Benzene mainly undergoes

    Explanation and discussion

  12. Question 32· Organic compounds· WAEC

    Name the compound CH₃CH₂CH₂OH by the IUPAC system.

    Explanation and discussion

  13. Question 33· Organic compounds· JAMB

    The hydration of ethene produces

    Explanation and discussion

  14. Question 34· Organic compounds· JAMB

    A hydrocarbon contains 85.7% carbon and 14.3% hydrogen by mass. Find its empirical formula. (C = 12, H = 1)

    Explanation and discussion

  15. Question 35· Organic compounds· JAMB

    The ester formed when ethanoic acid reacts with ethanol is

    Explanation and discussion

  16. Question 36· Organic compounds· WAEC

    Ethanoic acid reacts with ethanol in the presence of concentrated H₂SO₄ to form

    Explanation and discussion

  17. Question 37· Organic compounds· WAEC

    Ethanol reacts with ethanoic acid in the presence of concentrated tetraoxosulphate(VI) acid to form

    Explanation and discussion

  18. Question 38· Organic compounds· JAMB

    But-2-ene shows geometrical (cis-trans) isomerism because

    Explanation and discussion

  19. Question 39· Organic compounds· JAMB

    The molecular formula of benzene is

    Explanation and discussion

  20. Question 40· Organic compounds· JAMB

    In the laboratory, methane is prepared by heating sodium ethanoate with

    Explanation and discussion

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