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pharmacy Topic wise MCQs

Pharmaceutical Analysis (Part:- 2) Mcqs with answers

PHARMACEUTICAL ANALYSIS

51 In PMR spectra,Delta value for highly acidic hydrogen is around
A 1
B 7.3
C 5.2
D None of these

52 Dalton is a unit of
A Energy
B Pressure
C Charge
D None

53 Very small unit of energy is
A Calorie
B Joule
C Electron Volt
D Erg

54 Mass spectrometer requires
A High temprature
B High cooling
C High vaccume
D High pressure

55 Highest m/z peak in mass spectrum is called as
A Base peak
B Fragment peak
C Isotopic peak
D Parent peak

56 The physical state of sample required for mass spectrometry is
A Gas
B liquid
C Solid
D All of these

57 In EI mass instrument, sample is usually in
A Gas
B Liquid
C Solid
D All of these

58 Tandem mass instrument refers to
A MALDI-TOF
B ESI-TOF
C MS-MS
D Iontrape

59 Mass spectrometer are classified on the basis of
A Resolution                                                                                                                                                                                    B Ionisation
C Separation                                                                                                                                                                                      D All of these

60 Intensity of isotopic ion peak largely depends on
A Instrument sensitivity
B Isotope abundance
C Detector
D None of these

61 Triply charged anion peak has intensity in mass spectrum is
A 1/3 of mass
B Zero
C 3 times of mass
D None of these

62 Base peak of 91 Da confirms the presence of
A Phenol
B Aniline
C Arene
D Alcohol

63 M-1 peak has high intensity in the case of
A Phenol
B Alcohol
C Aldehyde
D Ester

64 If a mass spectrography can separate mass of 2000 Da and 2001 Da clearly, then the resolution is
A 2000
B 2001
C 1999
D 200

65 Mass spectrometry is not suitable for
A Identification
B Assay
C Structure ellucidation
D All of these

66 Drug metabolite study can be best done by
A UV-Visible spectroscopy
B GC-MS
C LC-MS
D NMR spectroscopy

67 Dates of formation of an ancient object can be studied by
A X-RAY spectroscopy
B IR spectroscopy
C HPLC
D Mass spectroscopy

68 Excited singlet to ground state singlet produces
A Absorption
B Fluorescence
C Phosphorescence
D None of these

69 Minimum structure required to have fluorescence is
A Conjugated double bond
B Aromatic ring
C Substituted aromatic ring
D None of these

70 Relation between fluorescence and concentration of analyte is
A Direct proportional
B Indirect proportional
C Direct & indirect both
D None of these

71 In fluorimeter, excitation radiation is obtained by
A Monochromator
B Primary filter
C Secondary filter
D Another radiation

72 Most common radiation source for fluorimeter is
A Tungstun lamp
B Deutarium lamp
C Holmium lamp
D Xenone lamp

73 In compendia, fluorimeter is prescribed for
A Identification
B Limit test
C Assay
D All

74 Quantum yield of fluorescence will always be
A More than 100
B Less than 100
C Less than 1
D More than 1000

75 Concentration reversal is common in
A UV-Visible spectroscopy
B IR spectroscopy
C Fluorometery
D Mass spectroscopy

76 Relation between fluorescence and intensity of radiation source is
A Inverse
B Direct
C No relation
D Complex

77 Relation between molar absorptivity and fluoroscence is
A Inverse
B Direct
C No relation
D Complex

78 Non fluoresence compound can be analysed by fluorimetry by
A Modifying structure
B Attaching fluorogenic group
C Quenchofluorimetry
D Any of these

79 FIA is obrevation of
A Fluorescence improved analysis
B Fluorescence impurity assay
C Fluorescence interactive analysis
D None of these

80 In day light, fluorescence can be viewed as
A Dark colour
B Colourless
C Double colour
D Pale colour

81 Electrodes pair required for potential measurement are
A Reference – Working electrodes
B Both working electrodes
C Both Reference electrodes
D Auxillary – Working electrodes

82 Cell used to standardise potentiometer is
A Daniell cell
B Weston cell
C Button cell
D None of these

83 If small positive potential is applied to reference electorde then
A Increase positive potential
B Decrease positive potential
C Becomes negative
D No change in potential

84 Indicator electrode commonly used in potentiometer is
A Calomel electrode
B Platinum electode
C Glass electrode
D Copper electrode

85 To find potential at any concentration using standard potential, we use
A Illkovik equation
B Bragg’s equation
C Beer’s equation
D None of these

86 Nitrite titration of IP-2007 do not involve measurement of
A Potential
B Current
C Dead stop end point
D Conductance

87 Sulfadiazine can be assayed by
A Amperometry
B Biamperometry
C Potentiometry
D All of these

88 Sulfamethoxazole can be assayed by
A Amperometry
B Biamperometry
C Potentiometry
D All of these

89 An antioxidant must have Standard Reduction Potential ______ as than that of drug
A More
B Less
C Same
D None of these

90 In IP-2007, Nitrite titration uses ______ as an indicator
A pH meter
B Potentiometer
C Ferroin
D Conductometer

91 Working range of polarography is
A ± 0.5 Volt
B ± 10 Volts
C ± 5 Volts
D None of these

92 Polarograph is
A Current Vs Volt graph
B DME
C Instrument
D None of these

93 Diffusion current is not due to
A Migration of ions
B Convention of ions
C Heating of solution
D All of these

94 Residual current in polarography is due to
A Oxidisable impurity
B Reducible impurity
C Analyte
D All of these

95 In polarography supporting electrodes must be having
A Low reduction potential
B High concentration
C High reduction potential
D High concentration and high reduction potential

96 Commonly used polarographic maxima supressor is
A Glucose
B Glycerine
C Gelatin
D Sodium Carbonate

97 Entire polarography is carried out in absence of ______ gas
A Nitrogen
B Carbon dioxide
C Moisture
D Oxygen

98 In polarography, migration current can be blocked by adding
A Oxygen
B KCl
C Gelatin
D Glucose

99 Diffusion current can be correlated with different conditions by
A Bragg’s equation
B Nernst equation
C Illkovic’s equation
D Beer’s equation

100 Diffusion current and Concentration of analyte have________ relationship
A Directly proportional
B Inversely proportional
C No
D Logarithmic

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