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Chemistry Past Questions and Answers

Post Utme Chemistry Questions

Question 456:
Sodium is extracted from molten sodium chloride mainly by:
  • A Carbon reduction method
  • B Electrolysis extraction process
  • C Crystallization separation process
  • D Thermal decomposition method
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Question 457:
The chemical abbreviation for potassium is:
  • A Po metallic symbol
  • B Pt metallic symbol
  • C P metallic symbol
  • D K metallic symbol
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Question 458:
A major chemical property of metals is their tendency to:
  • A Gain electrons rapidly
  • B Form acidic oxides
  • C Lose electrons readily
  • D Produce covalent bonds
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Question 459:
Group I metals react with water mainly to produce:
  • A Acidic chloride compounds
  • B Insoluble carbonate salts
  • C Neutral sulfate compounds
  • D Alkaline metal hydroxides
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Question 460:
Magnesium belongs to the periodic table group called:
  • A Halogen nonmetal elements
  • B Transition metal elements
  • C Noble gaseous elements
  • D Alkaline earth metals
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