Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be_____________________? / Chemical Engineering Basics / By admin Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be_____________________? A. 5 B. 1.25 C. 2.5 D. 3.75