HomeEngineeringChemical formula of oleum is 5473. Chemical formula of oleum isBy Admin / September 7, 2025 H₂SO₃ H₂SO₄ H₂S₂O₇ H₂SO₇ ✅ The correct answer is option C.
1. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm². Leave a Comment / Basic Chemical Engineering MCQs, Chemical Engineering, Engineering / By Admin
2. Transformer cores are normally made from Leave a Comment / Basic Chemical Engineering MCQs, Chemical Engineering, Engineering / By Admin