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Chemistry WAEC Past Questions

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
626
When X is heated with manganese (IV) oxide, oxygen is produced X is
  • A. KCI
  • B. KCIO3
  • C. CaCO3
  • D. ZnCO3
View Answer & Discuss (1) WAEC 2005
627
Which of the following statements is not a postulate of the kinetic theory of gases?
  • A. Molecules move with the same speed
  • B. intermolecular forces are negligible
  • C. Molecules are in a state of constant random motion
  • D. collision between molecules is elastic
View Answer & Discuss WAEC 2005
628

HNO3 does not usually react with metals to liberate hydrogen because HNO3 is

  • A. a strong acid
  • B. a corrosive acid
  • C. an oxidizing agent
  • D. a nitrating agent
View Answer & Discuss (8) WAEC 2005
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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629
Which of the following is not an acid anhydride?
  • A. P 2O 5
  • B. NO 2
  • C. SO 2
  • D. CO
View Answer & Discuss (5) WAEC 2005
630
NaHCO3(s) can be distinguished from Na2CO3(s) by the action of
  • A. dilute hydrochloric acid
  • B. carbon (IV) oxide
  • C. aqueous ammonia
  • D. heat
View Answer & Discuss (2) WAEC 2005
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