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JAMB and WAEC Chemistry questions: Metals and their compounds

47 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· Metals and their compounds· JAMB

    Duralumin is used to build aircraft because it is

    Explanation and discussion

  2. Question 22· Metals and their compounds· JAMB

    Alloys are generally

    Explanation and discussion

  3. Question 23· Metals and their compounds· WAEC

    Duralumin is used in aircraft bodies because it is

    Explanation and discussion

  4. Question 24· Metals and their compounds· JAMB

    The main ore of aluminium is

    Explanation and discussion

  5. Question 25· Metals and their compounds· JAMB

    Which metal is a liquid at room temperature?

    Explanation and discussion

  6. Question 26· Metals and their compounds· WAEC

    Iron nails in a test tube with boiled water covered by oil do not rust because

    Explanation and discussion

  7. Question 27· Metals and their compounds· JAMB

    When sodium hydroxide solution is added to a solution containing iron(III) ions, the precipitate formed is

    Explanation and discussion

  8. Question 28· Metals and their compounds· WAEC

    Which metal reacts with cold water to give hydrogen?

    Explanation and discussion

  9. Question 29· Metals and their compounds· WAEC

    Aluminium is extracted by electrolysis rather than by reduction with carbon because

    Explanation and discussion

  10. Question 30· Metals and their compounds· JAMB

    Sodium is stored under paraffin oil because it

    Explanation and discussion

  11. Question 31· Metals and their compounds· WAEC

    Galvanising protects iron by coating it with

    Explanation and discussion

  12. Question 32· Metals and their compounds· JAMB

    Cryolite is added in the extraction of aluminium to

    Explanation and discussion

  13. Question 33· Metals and their compounds· WAEC

    A clean iron nail in boiled water covered with a layer of oil does not rust because

    Explanation and discussion

  14. Question 34· Metals and their compounds· WAEC

    Bronze, used for medals and statues, is an alloy of

    Explanation and discussion

  15. Question 35· Metals and their compounds· JAMB

    In the blast furnace, iron is extracted from its ore using

    Explanation and discussion

  16. Question 36· Metals and their compounds· JAMB

    Aluminium is extracted from its ore by:

    Explanation and discussion

  17. Question 37· Metals and their compounds· WAEC

    In the blast furnace, iron is obtained from haematite mainly by reduction with

    Explanation and discussion

  18. Question 38· Metals and their compounds· JAMB

    Transition metals commonly

    Explanation and discussion

  20. Question 40· Metals and their compounds· JAMB

    Brass is an alloy of

    Explanation and discussion

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