Common Interview and Viva Questions

Name the reagent and expected colour change for the preliminary detection of alkaloids, flavonoids, and saponins.Explain the biosynthetic difference between...

• Name the reagent and expected colour change for the preliminary detection of alkaloids, flavonoids, and saponins.
• Explain the biosynthetic difference between a mevalonate-pathway and non-mevalonate (MEP)-pathway terpenoid.
• What information does HMBC provide that HSQC cannot?
• Why is a neutral loss of 162 Da diagnostic in the mass spectrum of a glycoside?
• Differentiate an 'active marker' from an 'analytical marker' compound.
• Outline the steps of bioassay-guided fractionation.