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Chemistry 2011 JAMB Past Questions

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21

A chemical reaction which the hydration energy is greater than the lattice energy is referred to as

  • A. a spontaneous reaction
  • B. an endothermic reaction
  • C. an exothermic reaction
  • D. a reversible reaction
View Answer & Discuss (13) JAMB 2011
22

The function of zinc electrode in a galvanic cells is that it

  • A. undergoes reduction
  • B. serves as the positive electrode
  • C. production of electons
  • D. uses up electrons
View Answer & Discuss (5) JAMB 2011
23
CH4(g) + Cl2(g) → CH3 Cl(s) + HCl(g)
The major factor that influence the rate of the reaction above is
  • A. catalyst
  • B. temperature
  • C. concentration
  • D. light
View Answer & Discuss (4) JAMB 2011
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24
The condition required for corrosion to take place is the presence of
  • A. water and carbon (IV) oxide
  • B. water, carbon (IV) oxide and oxygen
  • C. oxygen and carbon (IV) oxide
  • D. water and oxygen
View Answer & Discuss (1) JAMB 2011
25
The diagram above best illustrates the effect of decrease in
  • A. concentration
  • B. temperature
  • C. surface area
  • D. pressure
View Answer & Discuss (3) JAMB 2011
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