22. Different polymorphs of the same drug may exhibit: a) Same solubility b) same melting point c) different solubility dysame crystalline form 23. Crystal growth occurs in pharmaceutical products due to: d) All of a) Absorption of water b) Loss of volatile component c) loss of water these 24. Coalescence is the instability condition of: d) Emulsions b) Suspensions c) Syrups d) Tablets 25. Hydrolysis is a reverse phenomenon of the: a) Degradation b) Photolysis d) Oxidation d) Condensation 26. Drugs which have amides in their structure are prone to: a) Oxidation b) Reduction of Hydrolysis d) All of these 27. When oxidation occurs the oxidation state of the chemical species become: a) Unstable b) More stable c) decreased d) Increased 28. Autoxidation, is caused by the: a) Absorption of free radicals b) Creation of free radicals c) destruction of free radicals d) loss of dree radicals 29. Which type of pharmaceutical degradation usually occurs adrenaline and riboflavin? a) Hydrolysis b) Auto oxidation d. Photo Oxidation d) Decarboxylation 30. 4-Aminosalicylic acid usually undergoes: a) Hydrolysis b) Auto oxidation c) Photo Oxidation d) Decarboxylation