PPSC Assistant Paper 2021 In Housing Urban Development & Public Health Engineering Department Rawalpindi, Everyday Science MCQs, PPSC Solved Past Papers MCQsWhich one of the following is the first step to refine petrol? Posted on June 8, 2021 by Rana TahirA. Fraction al Distillation B. Liquation C. Concentration D. FiltrationShare 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)
