Pharmaceutical Analysis PYQs – Set 85
Subject : Pharmaceutical Analysis
1681. In AAS, ionization of analyte atoms in flame/plasma can be suppressed by
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1682. Which feature in the 1H NMR spectrum provides information about the electronic environment of the protons in a compound?
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1683. The optimal pH range for the Karl Fischer reaction to occur with Karl Fischer reagent is
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1684. Nuclei having either the number of protons or neutrons as odd have _____ spin.
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1685. Only percent of the effluent of the liquid chromatography must be introduced in the mass spectrometer
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1686. Phenolphthalein is used as indicator in acid base titration because it shows colors as
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1687. Which form of the electrochemical measurement does not involve electrolysis?
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1688. The phenomenon of Fermi resonance is observed in
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1689. The heating effect is used in the measurement of the wavelength of
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1690. In LC-MS instrument, interface is applied between
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1691. Which of the following quantities is not changed at different magnetic field strength
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1692. Choose the WRONG statement about mass spectrometry with ESI
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1693. Microwave spectroscopy is generally used to detect
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1694. The purpose of shimming is to
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1695. Which of the following is not true
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1696. Which isomer(s) of xylene will exhibit 3 peaks in the 13C NMR spectrum
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1697. Which of the following titration method should be protected from light?
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1698. The approximate δ value of methyl proton in 1H-NMR is
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1699. Volhard's method of chloride ion determination
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1700. 13C chemical shift has a much wider range (<300 ppm) than 1H (<10 ppm) because:
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