JAMB Chemistry questions

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

1. Question 201· Environmental pollution· JAMB

   Photochemical smog forms when sunlight acts on

   • Aargon
   • Bhelium
   • Cpure oxygen
   • Dnitrogen oxides and hydrocarbons from vehicle exhausts

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   Explanation and discussion

2. Question 202· Environmental pollution· JAMB

   Smog is a mixture of

   • Asnow and rain
   • Bsand and dust
   • Csteam and oxygen
   • Dsmoke and fog

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3. Question 203· Environmental pollution· JAMB

   Which gas in car exhaust fumes combines with haemoglobin and reduces the blood's ability to carry oxygen?

   • Awater vapour
   • Bcarbon(IV) oxide
   • Cnitrogen
   • Dcarbon(II) oxide

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4. Question 204· Environmental pollution· JAMB

   Gas flaring in the Niger Delta releases large amounts of

   • Acarbon(IV) oxide into the atmosphere
   • Boxygen into the soil
   • Cpure water vapour only
   • Dnitrogen into rivers

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5. Question 205· Environmental pollution· JAMB

   Which gas is mainly responsible for acid rain?

   • Acarbon dioxide
   • Bsulphur(IV) oxide
   • Coxygen
   • Dnitrogen

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   Explanation and discussion

6. Question 206· Environmental pollution· JAMB

   Which of the following wastes is biodegradable?

   • Akitchen food waste
   • Bplastic bags
   • Cglass bottles
   • Daluminium cans

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   Explanation and discussion

7. Question 207· Environmental pollution· JAMB

   Depletion of the ozone layer is mainly caused by

   • Aoxygen
   • Bcarbon(IV) oxide
   • Cchlorofluorocarbons (CFCs)
   • Dwater vapour

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8. Question 208· Environmental pollution· JAMB

   Chlorofluorocarbons (CFCs) were widely used in

   • Arefrigerators and aerosol sprays
   • Bfertilisers
   • Ccement
   • Dsteel making

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9. Question 209· Environmental pollution· JAMB

   Eutrophication of lakes is caused mainly by

   • Aoil spills
   • Bfertilisers rich in nitrates and phosphates washed into the water
   • Cdust
   • Dsand

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10. Question 210· Environmental pollution· JAMB

    Biodegradable waste is waste that

    • Acan be broken down by microorganisms
    • Bis made of plastic
    • Cis made of glass
    • Dis a metal can

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    Explanation and discussion

11. Question 211· Environmental pollution· JAMB

    Acid rain damages buildings made of

    • Aplastic
    • Bglass
    • Climestone and marble
    • Dgold

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12. Question 212· Environmental pollution· JAMB

    A common source of lead pollution is

    • Atable salt
    • Bleaded petrol and old batteries
    • Ccotton fabric
    • Drainwater

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13. Question 213· Environmental pollution· JAMB

    The greenhouse effect is mainly caused by an increase in atmospheric

    • Aoxygen
    • Bcarbon(IV) oxide
    • Cnitrogen
    • Dargon

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14. Question 214· Environmental pollution· JAMB

    Oil spillage in rivers kills fish mainly because the oil

    • Aprevents oxygen from dissolving in the water
    • Bmakes the water too warm
    • Cadds nutrients
    • Dincreases light

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15. Question 215· Environmental pollution· JAMB

    The loudness of noise pollution is measured in

    • Anewtons
    • Bhertz
    • Cdecibels
    • Djoules

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16. Question 216· Environmental pollution· JAMB

    Eutrophication of rivers and lakes is mainly caused by

    • Aheavy rainfall
    • Bcarbon(IV) oxide in the air
    • Crun-off of fertilisers containing nitrates and phosphates
    • Dsunlight

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17. Question 217· Environmental pollution· JAMB

    Lead compounds were formerly added to petrol to

    • Aprevent knocking in engines
    • Bcolour the petrol
    • Creduce smoke
    • Dmake it cheaper

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18. Question 218· Kinetic theory of matter and gas laws· JAMB

    Real gases deviate most from ideal behaviour at

    • Alow pressure and high temperature
    • Bhigh pressure and low temperature
    • Croom temperature and pressure
    • Dall conditions equally

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19. Question 219· Kinetic theory of matter and gas laws· JAMB

    

    On the heating curve, the temperature stays constant between D and E because the heat supplied is used to

    • Araise the temperature of the liquid
    • Bchange the liquid into gas
    • Cmelt the solid
    • Dcool the gas

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20. Question 220· Kinetic theory of matter and gas laws· JAMB

    Under the same conditions, which of the following gases diffuses fastest?

    • Aoxygen
    • Bhelium
    • Cmethane
    • Dhydrogen

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    Explanation and discussion