HomeEngineeringSolvent used in duo-sol extraction for lube oil upgradation is a mixture of 2617. Solvent used in duo-sol extraction for lube oil upgradation is a mixture ofBy Admin / September 7, 2025 propane & phenol-cresol mixture. methyl ethyl ketone & glycol. phenol & furfural. propane & liquid sulphur dioxide. ✅ The correct answer is option A.
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