Which of the following gases are diatomic except? by Sunday | Aug 23 | Chemistry WAEC | 0 comments A. nitrogen B. helium C. hydrogen D. fluorine E. oxygen Correct Answer: Option B – helium Users Also Read These:Which of the following gases is not acidic?Which of the following gases is monoatomic?Which of the following gases contains the least…Which of the following gases has the lowest rate of…Which of the following elements is diatomic?