Pharmaceutical Analysis PYQs – Set 72

By Atul Sahu • Pharmaceutical Analysis, Subject Wise PYQs

Pharmaceutical Analysis PYQs – Set 72

Subject : Pharmaceutical Analysis

1421. What is the nuclear magnetic resonance frequency of ¹H in a 7.05 Tesla magnetic field?

Pharmaceutical Analysis • Spectroscopy • GPAT 2023

A. 300.0 MHz B. 200.0 MHz C. 60.0 MHz D. 100 MHz

1422. In NMR spectroscopy, aromatic protons typically resonate in the narrow range of:

Pharmaceutical Analysis • Spectroscopy • GPAT 2023

A. δ 6.5–8.0 B. δ 11.0–12.0 C. δ 2.0–4.0 D. δ 0.7–1.3

1423. In atomic absorption spectroscopy, background correction using a pulsed hollow cathode lamp is known as

Pharmaceutical Analysis • Spectroscopy • GPAT 2023

A. Smith hieftje background correction B. Continuous source background correction C. Zeeman effect background connection D. Hollow cathode background correction

1424. In UV spectrophotometry, which lamp is used to generate the UV spectrum?

Pharmaceutical Analysis • Spectroscopy • GPAT 2023

A. Tungsten B. Sodium vapor C. LED D. Deuterium

1425. Predict the theoretical maximum absorbance (λmax) for a compound using Woodward-Fieser rules with a base value of 215 nm.

Pharmaceutical Analysis • Spectroscopy • GPAT 2023

A. 240 nm B. 220 nm C. 225 nm D. 235 nm

1426. Calculate the λmax of the following molecule:

Pharmaceutical Analysis • Spectroscopy • GPAT 2023

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

1427. Which ionization technique in mass spectrometry is most suitable for large biomolecules like proteins:

Pharmaceutical Analysis • Spectroscopy • GPAT 2023

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

1428. Which titration will always have an equivalence point at a pH > 7.00?

Pharmaceutical Analysis • Titration • GPAT 2023

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

1429. Plastographic method of analysis to obtain individual amounts of Cu²⁺ and Cd²⁺ in a mixture is achieved by measuring their

Pharmaceutical Analysis • Titration • GPAT 2023

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

1430. Which among the following statements on electroanalytical methods is correct

Pharmaceutical Analysis • Titration • GPAT 2023

A. Measures conductance between two electrodes with an AC‑powered Wheatstone bridge B. Potentiometry involves application of the Nernst equation C. Coulometry involves application of the Nernst law relating quantity of electricity to amount of compound D. All of the above

1431. Which method is used for the Limit test for arsenic?

Pharmaceutical Analysis • Titration • GPAT 2023

A. Gutzeit method B. Oswald method C. Arrhenius method D. Karl‑Fischer method

1432. What quantity of an indicator solution shall be added when the quantity is not mentioned in an assay or test?

Pharmaceutical Analysis • Titration • GPAT 2023

A. 0.1 mL B. 0.05 mL C. 0.2 mL D. 0.5 mL

1433. In Kjeldahl method, sample containing nitrogen is digested with ______.

Pharmaceutical Analysis • Titration • GPAT 2023

A. Concentrated sodium hydroxide B. Fuming nitric acid C. Concentrated sulphuric acid D. Strong ammonia solution

1434. Permitted tolerance limit for a 100mL class B volumetric flask and 1000 mL class B volumetric flask according to BS 1792 specifications respectively are ______ mL

Pharmaceutical Analysis • Titration • GPAT 2023

A. 0.15 and 0.80 B. 0.80 and 0.30 C. 1.00 and 10.00 D. 0.15 and 1.5

1435. PM indicators are used in :

Pharmaceutical Analysis • Titration • GPAT 2023

A. Redox titrations B. Non-Aqueous titrations C. Acid-base titrations D. Complexometric titrations

1436. Closeness of a measured value to the true value is known as

Pharmaceutical Analysis • Titration • GPAT 2023

A. Accuracy B. Deviation C. Precision D. Bias

1437. Silver nitrate is used in the IP limit test for:

Pharmaceutical Analysis • Titration • GPAT 2023

A. Lead B. Iron C. Chloride D. Mercury

1438. Which assay is NOT typically used for cell viability?

Pharmaceutical Analysis • Titration • GPAT 2023

A. MTT/MTS/Resazurin assay B. Apoptosis assay C. ATP assay D. Protease marker assay

1439. In Mohr’s method, the silver nitrate solution is standardized against which compound?

Pharmaceutical Analysis • Titration • GPAT 2023

A. Sodium carbonate B. Sodium chloride C. Sodium hydrogen carbonate D. Sodium metabisulfite

1440. Back-titration is used for which types of substances?

Pharmaceutical Analysis • Titration • GPAT 2023

A. Volatile substances only B. Volatile substances and those needing excess reagent C. Volatile, insoluble, and heat-sensitive substances D. All of these

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