Pharmaceutical Analysis PYQs – Set 77
Subject : Pharmaceutical Analysis
1521. The range of IR absorption for carbonyl compound is ____ cm⁻¹:
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1522. Indicator reagent in complexometric titrations are all, EXCEPT:
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1523. The composition of Silica gel G is:
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1524. For which of the following methods is it most important to use an internal standard?
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1525. Expanded bed adsorption chromatography runs on the principle of:
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1526. Among the compounds given below which one exhibits a sharp band at around 3300 cm⁻¹ in the IR spectrum?
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1527. The type of chromatography wherein the analyte ions in the mobile phase are attracted to the counter ions in the stationary phase is:
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1528. Which of the following analyte characteristics would make analysis by gas chromatography a poor choice?
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1529. Which of the following relationships between absorbance and % transmittance is incorrect?
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1530. How many signals appear in the proton-decoupled ¹³C NMR spectrum of 1,4-dibromo benzene?
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1531. Which of the following functional groups is likely to be present in a molecule that has peaks in the IR spectrum at 1630-1820 cm⁻¹ (strong, broad), but does not have peaks at 3200-3650 or 1000-1250 cm⁻¹?
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1532. The Freundlich adsorption isotherm can be used to model:
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1533. A demonstration that a particular instrument or device produces results within specified limits by comparisons with those produced by a reference or traceable standard over an appropriate range of measurements is:
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1534. What is the wavelength of sodium D-line in polarimeter?
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1535. What indicators are appropriate for complexometric titrations?
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1536. A very common interference for the glass pH electrode is:
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1537. In IR of phenyl acetate, the absorption band for carbonyl group is obtained at:
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1538. Which of the following most closely matches the C=C stretching frequency?
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1539. Unit of nth order rate constant is:
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1540. In the proton NMR, in what region of the spectrum does one typically observe hydrogens bound to the aromatic ring?
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