<prompt> Molecular separation of two proteins with same charge can be done byIon exchange chromatographyDialysisGel diffusion chromatographyElectrophoresis  <response>: Molecular separation of two proteins with same charge can be done by gel diffusion chromatography. Gel diffusion chromatography is the best method to differentiate proteins. Ref: Harper 28th Ed. Page-21-22, Harper 27th Ed. Page: 21-22 