<prompt> Seliwanoffs test is positive in:GlucoseFructoseGalactoseMannose  <response>: Ans. B. FructoseSeliwanoffs test is a specific test for ketohexoses. It consists of resorcinol with HCL. It reacts with ketoses forming furfurals and then condenses to form a cherry colored complex. Given by fructose, sucrose. 