Post category:Everyday SciencePost comments:0 CommentsThe gas, commonly known as “laughing gas”, isA. Carbon DioxideB. Nitrous OxideC. Sulfur DioxideD. Sodium OxideShare this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) You Might Also Like Who discovered Radioactivity? April 8, 2019 Milk contains water in what percentage? April 6, 2019Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email. Notify me of new posts by email.