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Chemistry 2010 WAEC Past Questions

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21
The following substances are normal salts except
  • A. AI(NO3)3
  • B. FeSO4
  • C. Mg(OH)NO3
  • D. NaCI
View Answer & Discuss (2) WAEC 2010
22
Which of the following chlorides is insoluble in water?
  • A. AgCI
  • B. KCI
  • C. NH4CI
  • D. ZnCI2
View Answer & Discuss (5) WAEC 2010
23
Which of the following factors would not affect the solubility of a gas?
  • A. Concentration
  • B. Nature of solvent
  • C. Pressure
  • D. Temperature
View Answer & Discuss WAEC 2010
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24
Consider the equilibrium reaction represented by the following equation: 2SO2(g) + O2(g) ⇌ 2SO3(g); ∆H = 395.7 kJmol-1 Which of the following statements about the equilibrium system is correct?
  • A. Addition of catalyst changes the equailibrium position
  • B. Decrease in pressure increase in temperature SO3
  • C. Decrease in pressure increases the equilibrium concentration of O2
  • D. Increase in temperatur favours the forward reaction
View Answer & Discuss (10) WAEC 2010
25
The rate of chemical reaction of solids are not affected by
  • A. catalyst
  • B. pressure
  • C. particle size
  • D. temperature
View Answer & Discuss (1) WAEC 2010
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