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Chemistry 2000 WAEC Past Questions

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1
The atoms of four elements are represented as 20Q, 16R, 10S and 8T Which of the elements would be unreactive?
  • A. Q
  • B. R
  • C. S
  • D. T
View Answer & Discuss (8) WAEC 2000
2
Chlorine atom forms CI by
  • A. losing one electron
  • B. Sharing one electron
  • C. Donating lone pair of electrons
  • D. Gaining one electron
View Answer & Discuss (2) WAEC 2000
3
An element Z has a combining power of 3. Which of the following formulae is correct of its compounds?
  • A. ZSO3
  • B. Z3CI2
  • C. Z 2O 3
  • D. ZS3
View Answer & Discuss (8) WAEC 2000
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4
Electrovalent compounds are characterized by
  • A. solubility in ethanol
  • B. high molar mass
  • C. high melting point
  • D. strong oxidizing ability
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5
The type of chemical bond that exists between potassium and oxygen in potassium oxide is
  • A. ionic
  • B. metallic
  • C. covalent
  • D. dative
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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