chemistry Does laughing gas really make you laugh? Nitrous Oxide (N2O) is also known as laughing gas, nitrous, sweet air, protoxide of nitrogen, hyponitrous oxide.The IUPAC name of it is “ Dinitrogen Monoxide ''. Muhammad Shahin Alam Hey, I am Muhammad Shahin Alam, COO, IT specialist, SEO expert, Technical analyst and business advisor. Currently,, a pure chemistry student. More posts by Muhammad Shahin Alam. Muhammad Shahin Alam 18 Apr 2020 • 2 min read Subscribe to Utopia Educators Get the latest posts delivered right to your inbox Subscribe Great! Check your inbox and click the link to confirm your subscription. Please enter a valid email address!