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Tuesday, 19 May 2026
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Chemistry Past Questions and Answers

Chemistry Questions

Question 171:
JAMB 1980
Which of the following statements is an exception in the assumptions of the kinetic theory of gases?
SchoolNGR Classroom
  • A Gases are composed of many elastic particles
  • B The particles are of negligible size
  • C The particles are in constant random motion
  • D The particles are of negligible mass
  • E The particles collide with each other
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Question 172:
JAMB 1980
Which of the following statements is true?
SchoolNGR Classroom
  • A Metals conduct electricity while non-metals do not
  • B Metals have high density, non-metals have low density
  • C Metals form basic oxides, non-metals form acidic oxides
  • D In the electro chemical series, metals are above hydrogen while non-metals are below hydrogen
  • E Metals lose elections while non-metals gain electron during normal reactions
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Question 173:
JAMB 1980
The boiling point of water is higher than that of methanol because?
SchoolNGR Classroom
  • A Water is oxide while methanol is an alcohol
  • B Inter molecular forces in water are stronger than those in methanol
  • C Water is an inorganic compound while methanol is organic
  • D Water is an ionic compound while methanol is a covalent compound
  • E Water is more reactive than methanol
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Question 174:
JAMB 1980
Chlorine, bromine and iodine resemble each other in that all?
SchoolNGR Classroom
  • A Dissolve in alkalis
  • B React violently with hydrogen without heating
  • C Displace each other from solutions of their salts
  • D Are gases
  • E Are liquids
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Question 175:
JAMB 1980
Element X has a total of 19 electrons and can react with oxygen to form an oxide. Which of the following statements is NOT true of the oxide of the element?
SchoolNGR Classroom
  • A When exposed to air, it slowy changes to liquid
  • B Its solution in water conducts electricity
  • C Its solution in water, on evaporationm gives a white solid
  • D Its solution in water liberates hydroge when in contact with aluminium metal
  • E Its oxide, when stronlgy heated, regenerates the elements X
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