GPAT PYQs – Set 8
Year: 2023
141. Choose the correct order of decreasing dielectric constant:
Physical and Inorganic Chemistry • Physical and Inorganic Chemistry
142. How many optical isomers are possible for lactic acid?
Organic Chemistry • Isomerism
143. Following is an example of an atypical antipsychotic:
Pharmacology • Drugs Acting on Central Nervous System
144. The mass spectrum of a compound with MW ~137 shows two equally intense peaks at m/z 136 and 138. This suggests that the compound is:
Pharmaceutical Analysis • Spectroscopy
145. Match List I with List II. List I: A. Riboflavin B. Niacin C. Thiamine D : Pantothenic aciD : List II: I. Electron acceptor for isocitrate dehydrogenase II. Decarboxylation of α‑ketoglutarate dehydrogenase III. Part of coenzyme A IV. Cofactor for succinate dehydrogenase V. Enzyme activity regulator. Choose the correct matching.
Biochemistry • Enzymes and Coenzymes
146. Electrophilic substitution of pyridine, when carried out in the presence of KNO₃ and concentrated H₂SO₄ at 300 °C, leads to the formation of:
Organic Chemistry • General Organic Chemistry
147. A reagent may attach itself to a conjugated diene at the two end carbons of the conjugated system. Identify the reaction:
Organic Chemistry • General Organic Chemistry
148. Invert sugar is a product obtained by the hydrolysis of:
Biochemistry • Carbohydrate Metabolism
149. Following groups exert one of the effects on electrophilic aromatic substitution. Identify whether all three are:
Organic Chemistry • General Organic Chemistry
150. DNA and RNA contain the following two major purine bases:
Biochemistry • Carbohydrate Metabolism
151. The correct rank order of orientation of sulfonation in toluene is:
Organic Chemistry • General Organic Chemistry
152. Lucas test is very rapid with:
Organic Chemistry • Name Reactions
153. Following is not an example of a carbapenem:
Pharmacology • Antimicrobial Agents
154. As the solution of a strong electrolyte is diluted, the following phenomenon is observed:
Physical and Inorganic Chemistry • Physical and Inorganic Chemistry
155. The molecule having zero dipole moment is:
Physical and Inorganic Chemistry • Physical and Inorganic Chemistry
156. The time taken at a fixed temperature or the radiation dose required to achieve a 90% reduction in viable bacterial cells is called:
Microbiology • Complete Subject
157. In pharmacokinetic models, the term “compartment” means:
Biopharmaceutics • ADME
158. Which of the following pharmaceutical solvents has the highest dielectric constant at 25 °C?
Physical and Inorganic Chemistry • Physical and Inorganic Chemistry
159. Kozeny–Carmen equation is used to determine the:
Pharmaceutical Engineering • Filtration and Centrifugation
160. Which of the following emulsifiers has the highest HLB value?
Pharmaceutical Technology • Emulsion
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