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 contains the least…Terrestrial plants exchange gases through the…Which of the following gases is used to retard the…Which of the following gases is monoatomic?