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Chemistry 2001 WAEC Past Questions

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11
A mixture of calcium chloride and calcium trioxocarbonate (IV) in water can be separated by
  • A. evaporation
  • B. sublimation
  • C. distillation
  • D. filtration
View Answer & Discuss (2) WAEC 2001
12
Which of the following would dissolve in warm dilute H2SO4 without effervescence, to give a blue solution?
  • A. Copper turnings
  • B. Copper (ll) trioxocarbonate (IV)
  • C. Copper (ll) oxide
  • D. Copper alloy
View Answer & Discuss (3) WAEC 2001
13
In which of the reactions represented by the following equations is HNO3 behaving as a typical acid?
  • A. CaO + 2HNO3 → Ca(NO3) 2 + H 2O
  • B. Cu + 4HNO3 → Cu(NO 3)2 + 2H2O + 2NO2
  • C. S + 6HNO3 → H2SO 4 + 6NO2 + 2H2O
  • D. P + 5HNO3 → H 3PO 4 + 5NO2 + H2O
View Answer & Discuss WAEC 2001
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14
A gas was evolved when a sample of gastric juice reacted with sodium trioxocarbonate (IV) . The gas evolved was
  • A. NH3
  • B. SO2
  • C. HCI
  • D. CO2
View Answer & Discuss (1) WAEC 2001
15
It can be concluded that gastric juice
  • A. contains enzymes
  • B. is acidic
  • C. is a mixture
  • D. has pH value of 7
View Answer & Discuss (5) WAEC 2001
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