GPAT PYQs – Set 53

By Atul Sahu • GPAT PYQs

GPAT PYQs – Set 53

Year: 2022

1044. What is the major product formed in the given reaction?

Organic Chemistry • General Organic Chemistry

A. Option A B. Option B C. Option C D. Option D

1045. Which functional groups weaken benzoic acid?

Organic Chemistry • General Organic Chemistry

A. –OH and –Cl B. –OH and –NH₂ C. –Cl and –NH₂ D. –OH and –NO₂

1046. The given structure represents which compound?

Pharmacognosy • Alkaloids

A. Norephedrine B. Pseudoephedrine C. Ephedrine D. Norpseudoephedrine

1047. What is the major product of the acid-catalyzed reaction shown?

Organic Chemistry • General Organic Chemistry

A. Option A B. Option B C. Option C D. Option D

1048. According to the n+1 rule, what multiplicities are seen in 1,1-dibromoethane's proton NMR?

Physical and Inorganic Chemistry • NMR Principles

A. Triplet and doublet B. Quartet and doublet C. Triplet and quartet D. Triplet and triplet

1049. Calculate the λmax of the following molecule:

Pharmaceutical Analysis • Spectroscopy

A. 273 nm B. 283 nm C. 244 nm D. 234 nm

1050. What is the potential at the equivalence point for the redox reaction?

Physical and Inorganic Chemistry • Electrochemistry

A. E = (bE₀₁ + aE₀₂)/(a+b) B. E = E₀ + (0.0592/n) log Q C. E = E₀ + (0.0592/n) log (Red/Ox) D. E = (E₀₁ + E₀₂)/2

1051. Which ionization technique in mass spectrometry is most suitable for large biomolecules like proteins:

Pharmaceutical Analysis • Spectroscopy

A. Physical Ionization (PI) B. Electron Impact (EI) C. Electrospray Ionization (ESI) D. Chemical Ionization (CI)

1052. What is the partition coefficient of boric acid between water and amyl alcohol?

Physical and Inorganic Chemistry • Partition Coefficient

A. 1.33 B. 0.75 C. 0.3 D. 3.33

1053. Which titration will always have an equivalence point at a pH > 7.00?

Pharmaceutical Analysis • Titration

A. Weak acid with weak base B. Strong acid with weak base C. Weak acid with strong base D. None of the above

1054. Plastographic method of analysis to obtain individual amounts of Cu²⁺ and Cd²⁺ in a mixture is achieved by measuring their

Pharmaceutical Analysis • Titration

A. Half‑wave potentials B. Migration currents C. Decomposition potentials D. Diffusion currents

1055. Which of the following is NOT a phospholipid?

Biochemistry • Lipid Classification

A. Sphingomyelin B. Lysolecithin C. Cardiolipin D. Galactosylceramide

1056. The citric acid cycle is the final pathway in the oxidation of which substrates?

Biochemistry • Metabolic Pathways

A. Carbohydrates B. Lipids C. Proteins D. All of these

1057. Regarding Glucose-6-phosphate and Glucose-1-phosphate, which is correct?

Biochemistry • Carbohydrate Metabolism

A. Both statements are correct B. Both statements are incorrect C. G6P is formed only from glucose; G1P yields free glucose D. G6P can form from glycogen; G1P cannot yield free glucose

1058. How do enzymes accelerate reaction rates?

Biochemistry • Enzyme Kinetics

A. Lower activation energy B. Denature substrates C. Increase temperature D. Change pH

1059. Which statements about prions are true?

Microbiology • Prions & Infectious Agents

A. Prion is infectious, contains ssRNA, and is hard to destroy B. Only prion is infectious C. Prion is infectious and extremely resistant D. Prion is infectious but lacks ssRNA

1060. Which statements about organism classification are true?

Microbiology • Classification of Microorganisms

A. Bacteria under Monera; Protista are unicellular; Fungi include yeasts and molds B. Protista are eukaryotic and unicellular; Fungi include yeasts and molds; higher fungi are animals C. Bacteria under Monera; Protista are unicellular; yeasts/molds are Fungi D. Only yeasts and molds are Fungi

1061. Regarding sequencing methods, which is correct?

Microbiology • Molecular Techniques

A. Both DNA and RNA sequencing are equally easy B. Both methods are equally difficult C. DNA sequencing is easier due to stability; Maxam–Gilbert works only for ssDNA D. RNA sequencing is easier than DNA sequencing

1062. Hemophilia A is caused by a deficiency of which clotting factor?

Human Anatomy and Physiology • Hematology

A. Vitamin K B. Clotting Factor IV C. Clotting Factor - VIII D. Clotting Factor - IX

1063. In a Dynamic Vapor Sorption (DVS) isotherm, what is plotted?

Physical Pharmacy • Moisture Sorption

A. A - Crystallization Peak Energy (J/g) B - % Relative Humidity B. % Change in Mass vs. % Relative Humidity C. A - Crystallization Peak Energy (J/g) B - % Change in Mass D. A - Crystallization Peak Energy (J/g) B - Amorphous Content

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GPAT PYQs – Set 53

GPAT PYQs – Set 53

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GPAT PYQs – Set 53

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