An element Z has a combining power of 3. Which of the following formulae is

CHEMISTRY
WAEC 2000

An element Z has a combining power of 3. Which of the following formulae is correct of its compounds?

  • A. ZSO3
  • B. Z3CI2
  • C. Z2O3
  • D. ZS3

Correct Answer: C. Z2O3



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