71. The most intense peak in mass spectrum is known as A. M + 1 Peak B. M + 2 Peak C. Base peak D. Molecular ion peak Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
72. Most commonly used internal standard for measuring positions of protons in NMR spectroscopy is A. Silanol B. Trimethyl silane C. Tetra methyl silane D. CDCl3 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
73. Confirmation of drugs are commonly determined by A. NMR B. NMI C. Mass spectroscopy D. pH determination Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
74. Which one is not used in gas chromatography? A. Packed column B. Open tubular column C. S. C. O. T. column D. Guard column Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
75. The principle of infrared spectra is based upon A. Electronic excitation B. Resonance C. Dissociation D. Molecular vibrations Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
76. Which of the following is used for standardisations in redox titrations? A. Potassium hydrogen phthalate B. Sulfanilic acid C. Ferrous ammonium sulphate D. Calcium carbonate Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
77. The theory of nebulisation is associated with . . . . . . . . A. Nephalometry B. A. A. S. C. Fluorimetry D. Titrimetry Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
78. Indicate the HPLC detector that is most sensitive to change in temperature: A. PDA detector B. Refractive index detector C. Electrochemical detector D. Fluorescence detector Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
79. The unit measurement of conductance is A. Amperes B. Mhos C. Millivolts D. Ohms Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
80. Which one of the following indicator is used in complexometric titration A. Crystal violet B. Mureoxide C. Eosin D. Methyl orange Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board