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Pharmaceutical Analysis (Part:- 1) Mcqs with answers

PHARMACEUTICAL ANALYSIS

1.Atomic spectroscopy deals with radiation of wavelength
A 1-200 nm
B 200-800 nm
C 2.5-16 micrometer
D 400-800 nm

2. Flame photometry is a type of
A Atomic emmision spectroscopy
B Atomic fluroscence spectroscopy
C Atomic absorption spectroscopy
D None of these

3. Nebulization refers to
A Evaporation
B Liquid converted to spray
C Condensation
D Solidification

4. Atomization refers to
A Evaporation
B Atom formation from molecule
C Breaking of atom
D None of these

5. The part of molecule involved in Atomic Spectroscopy is
A Valence electron
B Nucleus
C Inner electron
D Protons

6. The number of lines observed in atomic spectra are
A Always fix
B Changes
C Depends on excitation source
D None of these

7. In atomic spectra, Doppler effect is due to
A Line wavelength
B Line intensity
C Line width
D None of these

8. In atomic spectra, Zeeman line broadening is due to
A Ionised atom
B High concentrat
C Magnetic field
D None of these

9.Inner side of the cathod in hollow cathod lamp for AAS is coated with
A Mercury
B Tungstun salt
C Hydrogen
D None of these

10. To prevent ionisation of the analyte in atomic spectroscopy, one can use
A Ionisation buffer
B pH buffer
C Electric buffer
D Any one of these

11. IP 2007 method for assay of Sodium and Potassium in ORS is
A HPLC
B Complexometry
C Argentometry
D Flame photometry

12. Flame photometry is widely used for analysis of
A Amino Acids
B Fats and oils
C Carbohydrates
D None of these

13 Number of elements which can be analysed by AES largely depends on
A Energy of excitation source
B Type of detector
C Type of slit
D None of these

14 In IR spectroscoy, waves are described by
A Wavelength
B Wave
C Frequency
D All

15. Change in bond angle in molecule is called
A Stretching
B Bending
C Symmetrical stetching
D None of these

16. Wave number considered as finger print region is in range of________cm-1
A 700-1400
B 400-700
C 1400-4000
D None of these

17.Minimum structural requirement for IR specta is
A Conjugated double bond
B Aromatic
C Non-aromatic
D Any one of these

18.All the vibrations in IR Spectroscopy
A Must be IR active
B May be IR active or may not be
C Must be IR inactive
D None of these

19. Energy required for bending vibration must always be ______than that of stretching
A Same
B More
C Less
D Unpredictable

20. Weak absorption band appearing at double the frequency of fundamental band is
A Combination tone
B Fermi resonanc
C Coupling
D None of these

21. Radiation source used for IR spectroscopy is
A Deuterium lamp
B Xenon lamp
C Tungstun lamp
D Globar

22 Commanly used optical instruments for IR spectroscopy are made from
A Glass
B Plastic
C Rubber
D KBr

23 For polymorphs study,best method is
A UV-Visible spectroscopy
B Fluorimetry
C Mass spectroscopy
D None of these

24 For conformational isomers study, best method is
A NMR spectroscopy
B Radiochemical analysis
C Mass spectroscopy
D IR spectroscopy

25 Moderate intensity IR peaks in 700-900 cm-1indicate prescence of
A Hydrocarbon
B Aldehyde
C Aromatic hydrocarbon
D Ketone

26. Low intensity doublet around 3400 cm-1 indicate presence of
A Phenol
B Primary am
C Hydrocarbon
D Aldehyde

27. Very strong absorption band around 1715 cm-1 indicate presence of
A Aldehyde
B Amide
C Ketone
D Anhydride

28. In a molecule, the part responsible for IR absorption is
A Ionic bond
B Double bond
C Conjugated double bond
D Any covelant bond

29. Fast responding IR detector is
A Thermocouple
B Golay polyneumatic detector
C Pyroelectric detector
D None of these

30 Interaction type in NMR is
A Valence electron
B Scattering of radiation
C Emission of radiation
D Absorption of radiation

31 Neuclear properties are described by
A Spin number
B Magnetic moments
C Magnetogyratic ratio
D All of these

32 Frequency of radio wave is
A 1-100 Hz
B 1-100 KHz
C 1-100 MHz
D None of these

33 When atomic mass is even and atomic number is also even then nucleus of those
A Does absorb radiowaves
B Does not absorb radiowave
C Emmit radiation
D None

34 Precession is the movement of
A Nucleus around its axis
B Electron around eachother
C Electron around nucleus
D None of these

35 Absorption of radiowave takes place when radio frequency matches with
A Precessional frequency
B Vibrational frequency
C Spin frequency
D Rotational frequency

36 NMR instruments are classified on bases of
A The type of nuclei
B Strength of magnet
C Mode of working
D All of these

37 Chemical shifts are expressed by
A Taur
B Hertz
C Delta
D All of these

38 The type of protons in the PMR can be identified from
A Strength of magnet
B Delta value
C Intensity of the absorption peak
D Mode of instrument

39 Transition metal in NMR spectroscopy behaves as
A Ferromagnetic
B Paramagnetic
C Diamagnetic
D None of these

40 Probable reason for high delta value of vInyl hydrogen is
A Diamagnetism
B Diamagnetic anisotropy
C High electron density
D Unsaturation

41 Two chemical bond distance exists between
A Isomeric proton
B vecinal proton
C Geminal proton
D Homogenic proton

42 Coupling constant has unit of
A Tesla
B Hertz
C Gauss
D Delta

43 For simple coupling ratio of ΔV/J must be
A Less than 10
B More than 10
C Less than 1
D More than 100

44 Complex splitting can be simplified by
A Shift reagent
B Spin decoupling
C Double irradiation
D All of these

45 PMR spectra provides information about
A Concentration
B Types of protons
C Number of neighbouring protons
D All of these

46 % of keto form in keto-enol tautomerism can be found by
A IR spectroscopy
B MASS spectroscopy
C NMR spectroscopy
D HPLC

47 Normal range of delta value in HNMR is
A 1-100
B 0-200
C 0-10
D 10-100

48 Delta value in 13C-NMR , largely depends on
A Diamagnetism
B Hybridisation
C Resonance
D Geometry

49 Gamma effect of any attachment, in 13C- NMR is
A Very high
B Veery low
C Positive
D Negative

50 In PMR spectra,Delta value for aromatic hydrogen is around
A 1
B 7.2
C 5.2
D 9.6

Answers

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