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Chemistry 2015 JAMB Past Questions

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1

The filter in the cigarette reduce the nicotine construct by

  • A. burning
  • B. adsorption
  • C. evaporation
  • D. absorption
View Answer & Discuss (9) JAMB 2015
2
Which of these require crystallization most?
  • A. Drug making
  • B. Cement making
  • C. Paint making
  • D. Perfume making
View Answer & Discuss (1) JAMB 2015
3
Iron is often galvanized in order to
  • A. Make it more malleable
  • B. Remove the impurities unit
  • C. Protect it against corrosion
  • D. Render it passive
View Answer & Discuss (4) JAMB 2015
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4

In the industrial production of H2 from water gas the CO2 produced along with the H2 is removed by

  • A. washing under pressure
  • B. drying over phosphorus (V) oxide
  • C. passing the mixture to the limewater
  • D. using ammonical copper (I) chlorine
View Answer & Discuss (10) JAMB 2015
5

The gas that is most useful in protecting humans against solar marathon is

  • A. chlorine
  • B. ozone
  • C. carbon IV oxide
  • D. hydrogen sulphide
View Answer & Discuss JAMB 2015
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