PPSC Past Paper Junior Clerk In Punjab Police Department-2018 Solved MCQs, Everyday Science MCQs, PPSC Solved Past Papers MCQsWhich poisonous gas produced when coal is burned without enough air supply? Posted on May 19, 2021 by Rana TahirA. Carbon Monoxide B. Nitrogen Oxide C. Ammonia D. HydrogenShare 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)