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Chemistry 2009 JAMB Past Questions

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36

Copper metal dissolves in concentrated trioxonitrate (V) acid with the resultant evolution of?

  • A. CO2
  • B. SO2
  • C. NO2
  • D. CO
View Answer & Discuss (6) JAMB 2009
37

The type of iron that is best suited for welding, making nails, chains and iron rods is?

  • A. pig iron
  • B. wrought iron
  • C. cast iron
  • D. iron pyrites
View Answer & Discuss (2) JAMB 2009
38
In the electrolytic extraction of aluminum, the function of the molten cryolite is to
  • A. precipitate aluminium hdroxide
  • B. lower the melting point of aluminium oxide
  • C. act as a raw materials
  • D. act as a solvent
View Answer & Discuss (12) JAMB 2009
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39

One of the products of the thermal decomposition of sodium trioxonitrate (V) is?

  • A. sodium
  • B. nitrogen
  • C. sodium dioxonitrate (III)
  • D. sodium oxide
View Answer & Discuss (2) JAMB 2009
40
A cracking process in petroleum refining can be represented by
  • A. heptane to heptene
  • B. heptane to 3-methylhexane
  • C. heptane to propene and butane
  • D. heptane to 2,3,3-trimethybutane
View Answer & Discuss (8) JAMB 2009
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts