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Chemistry 2013 JAMB Past Questions

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16
2H2O (l) + 2F2(g) → 4HF(aq) + O2(g).
In the reaction above, the substance that is being reduced is
  • A. O2(g)
  • B. H2O(l)
  • C. F2(g)
  • D. HF(aq)
View Answer & Discuss (4) JAMB 2013
17
In an electrochemical cell, polarization is caused by
  • A. chlorine
  • B. oxygen
  • C. tetaoxsulphate (Vl) acid
  • D. hydrogen
View Answer & Discuss (4) JAMB 2013
18
In an endothermic reaction, if there is a loss in entropy the reaction will
  • A. be indeterminate
  • B. be spontaneous
  • C. not be spontaneous
  • D. be at equilibrium
View Answer & Discuss (1) JAMB 2013
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19
the minimum amount of energy required for a reaction to take place is
  • A. lattice energy
  • B. ionization energy
  • C. activation energy
  • D. kinetic energy
View Answer & Discuss JAMB 2013
20
Which of the following compounds is a neutral oxide?
  • A. Carbon (IV) oxide
  • B. Sulphur (Vl) oixide
  • C. Sulphur (IV) oxide
  • D. Carbon (ll) oxide
View Answer & Discuss JAMB 2013
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