PPSC Past Paper Assistant Protocol Officer in Directorate General Protocol, S&GAD 2019 Solved MCQs, Everyday Science MCQs, PPSC Solved Past Papers MCQsGas for preparation of Banaspati Ghee? Posted on May 10, 2021 by Rana TahirA. Hydrogen B. Oxygen C. Nitrogen D. None of the aboveShare 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)
