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Chemistry WAEC Past Questions

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1151

Which of the following statements about intermolecular distances and cohesive forces between gas is correct? They are

  • A. Both large
  • B. Both negligible
  • C. Constant and negligible
  • D. Large and negligible
View Answer & Discuss (8) WAEC 2015
1152

The following diagram illustrates the rate curve that was obtained when Mg reacted with excess dilute HCl.

The diagram became horizontal at X because

  • A. The reaction was slowed down
  • B. All the dilute HCl has reacted
  • C. All the Mg has reacted
  • D. Hydrogen gas is produced at a steady rate
View Answer & Discuss (13) WAEC 2015
1153

An example of an acid salt is

  • A. CH3COOONa
  • B. Mg(OH)Cl
  • C. NaHSO4
  • D. (NH4)2SO4
View Answer & Discuss (13) WAEC 2015
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
1154

Which of the following oxides can be reduced by hydrogen?

  • A. Aluminium oxide
  • B. Magnesium oxide
  • C. Sodium oxide
  • D. Silver oxide
View Answer & Discuss (3) WAEC 2015
1155
Solubility is practically applied in
  • A. Fractional distillation
  • B. The determination of pH
  • C. The determination of saturation in hydrocarbons
  • D. Solvent extraction
View Answer & Discuss (1) WAEC 2015
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