An element Z has a combining power of 3. Which of the following formulae is correct of its compounds? By: Sunday|Published on: May 13|Categories: Chemistry WAEC| 0 comments A. ZSO3 B. Z3CI2 C. Z2O3 D. ZS3 Correct Answer: Option C C. Z2O3 Users Also Read These:Which of the following is/are not correct about…Which of the following indicates the correct…An element Z has a combining power of 3. Which of…Which of the following is correct about both…An element with the electron configuration of 1s²…SEE ALSO What volume of 0.5 mol dm−³ H2SO4 will exactly neutralize 20cm³ of 0.1 mol dm−³ NaOH solution?