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Chemistry 1996 WAEC Past Questions

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6
What volume of carbon (lV) oxide is produced at s.t.p. when 2.5g of CaCO3 reacts with excess acid according to the following equation? CaCO3 + 2HCI → CaCI2 +H2O + CO2 [CaCO3 = 100; molar volume of a gas at s.t.p = 22.4dm3]
  • A. 11.20dm3
  • B. 5.60dm3
  • C. 2.24dm3
  • D. 0.56dm3
  • E. 0.28dm3
View Answer & Discuss (2) WAEC 1996
7
A solution of pH 7 is
  • A. acidic
  • B. neutral
  • C. concentrated
  • D. dilute
  • E. saturated
View Answer & Discuss (1) WAEC 1996
8
Which of the following equations represents a neutralization reaction?
  • A. CaCI2 + 2HCI →CI2 +CaCI 2 + H2O
  • B. Na2O2 + H2SO4 → Na2SO4 + H2O2
  • C. H2SO4 + KOH → KHSO4 + H2 O
  • D. 2Na + 2H2O → 2NaOH + H2
  • E. CuSO4 + 2NaOH → Cu(OH)2+ Na2SO4
View Answer & Discuss WAEC 1996
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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9
Amphoteric oxides are oxides which
  • A. react with water to form acids
  • B. react with water to form alkali
  • C. show neither acid nor basic properties
  • D. react with acids alkalis
  • E. contain high proportion of oxygen
View Answer & Discuss (1) WAEC 1996
10
The following acids are monobasic except
  • A. trioxonitrate (V) acid
  • B. hydrochloric
  • C. ethanoic acid
  • D. tetraoxophosphorus (V) acid
  • E. dioxonitrate (lll) acid
View Answer & Discuss (3) WAEC 1996
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