PPSC Assistant in Disaster Management Department (Board of Revenue), Everyday Science MCQs, PPSC Solved Past Papers MCQsWhich Gas is Called Laughing Gas ? Posted on July 24, 2021 by adminA. Nitrous oxide B. Nitrogen dioxide C. Dinitrogen trioxide D. Sulfur trioxideShare this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)
