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Chemistry Past Questions

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1416
Which of the following statements is NOT true of carbon monoxide?
  • A. CO is poisonous
  • B. CO is readily oxidized at room temperature by air to form CO2
  • C. CO may be prepared by reducing CO2 mixed with coke heated to about 1000oC
  • D. CO may be prepared by heating charcoal with a limited amount of O2
  • E. CO is a good reducing agent
View Answer & Discuss (6) JAMB 1984
1417
From the reactions : ZnO + Na2O \(\to\) NaZnO and ZnO + CO2 \(\to\) ZnCO3 it may be concluded that zinc oxide is
  • A. neutral
  • B. basic
  • C. acidic
  • D. amphoteric
  • E. a mixture
View Answer & Discuss (2) JAMB 1984
1418
An example of a neutral oxide is
  • A. AL2O3
  • B. NO2
  • C. CO2
  • D. CO
  • E. SO2
View Answer & Discuss (5) JAMB 1984
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1419
3Cl2 + 2NH3 \(\to\) N2 + 6HCl. In the above reaction, ammonia acts as
  • A. a reducing agent
  • B. an oxidizing agent
  • C. an acid
  • D. a catalyst
  • E. a dry agent
View Answer & Discuss (4) JAMB 1984
1420
In the Haber process for the manufacture of ammonia, finely divided iron is used as
  • A. an ionizing agent
  • B. a reducing agent
  • C. a catalyst
  • D. a dehydrating agent
  • E. an oxidizing agent
View Answer & Discuss (8) JAMB 1984
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