An element Z has a combining power of 3. Which of the following formulae is correct of its compound? by Sunday | Apr 18 | Chemistry NECO | 0 comments A. ZS3 B. ZSO3 C. ZSO4 D. ZO3 E. Z3Cl2 Correct Answer: Option D – ZO3 Users Also Read These:An electric generator with a power output of 3.0KW…An organic compound has the empirical formula CH2.…An element Z has a combining power of 3. Which of…An element X with electronic configuration 1s² 2s²…An element of nucleon number P and atomic number Q…