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4- GPAT MCQ"s - All year B.Pharmacy mcq"s

 1. What is the wavelength range for UV spectrum of light? a) 400 nm – 700 nm

b) 700 nm to 1 mm

c) 0.01 nm to 10 nm

d) 10 nm to 400 nm


2. Sentence A: if temp. Is increases UV radiation absorption is increase. Sentence B: If temp. Is increases it is give better result in uv.

A. Sentence A and B is false.

B. Sentence A and B is true.

C. A is true and B is false.

D. A is false and B is true.


3. Which sentence is false about UV SPECTROSCOPY ?

A. Benzene is not used as solvent.

B. Low temperature is give better result in uv SPECTROSCOPY.

C. Chloroform is used as solvent in UV.

D. UV ray wavelength is 200- 400 nm.


4. Which sentence is true according to UV-VISIBLE SPECTROSCOPY ?

A. The principle is based on the measurements of spectrum of a sample containing atom/molecules.

B. UV-Visible spectroscopy measure the response of a sample to ultra Violet and visible range of EMR.

C. Spectrometer is an instrument design to measure the spectrum of a compound.

D. All of the above


5. Which sentence is false about inorganic compound ?

A. Ag is increase  absorption of UV radiation.

B. AU is increase absorption of UV radiation.

C. Inorganic compound are decreased uv radiation absorption.

D. Inorganic compound are increased uv radiation absorption.


6. when absorption intensity of compound is decreased it is called

A. Red shift

B. Blue shift

C. Hypochromic shift

D. Hyperchromic shift


7. Which compound is increased uv absorption ?

A. Auxochrome

B. Chromophore

C. Inorganic compound

D. All of the above


8. If solvent is polar ans electron transition is n->Ï€∗ which type of shift are seen in graph ?

 

A. Hypso chromich shift

B. Red shift

C. Blue shift

D. A and C


9. If solvent is non polar ans electron transition is n->Ï€ ∗which type of shift are seen in graph ?

A. Hypso chromich shift

B. Red shift

C. Blue shift

D. A and C


10. If solvent is non polar ans electron transition is Ï€⇒Ï€∗which type of shift are seen in graph ?

A. Hypso chromich shift

B. Red shift

C. Blue shift

D. A and C


11. If solvent is polar electron transition is Ï€⇒Ï€∗which type of shift are seen in graph ?

A. Hypso chromich shift

B. Red shift

C. Blue shift

D. A and C


12. Which of the following components of the X-ray fluorescent spectrometer induces fluorescent radiation?

A. Excitation source

B. Energy analyser

C. X-ray spectrometer

D. Detection System


13. Why is a mono-energetic radiation source required in X-ray fluorescent spectrometer?

A. To provide good sensitivity

B. To provide high accuracy

C. To provide a proper range

D. To reduce unwanted background


14. Which of the following does not make the X-ray tube nearly monochromatic?

A. Transmission-anode X-ray tube

B. Secondary fluorescence target

C. Slit

D. Filters


15. Which of the following components make use of a thin metal foil to isolate a nearly mono- energetic excitation beam?

A. Transmission-anode X-ray tube

B. Secondary fluorescence target

 

C. Slit

D. Filters


16. Energy dispersive system uses which of the following detectors?

A. Optical detector

B. Semiconductor detector

C. Thermistor

D. Bolometer


17. In Energy dispersive system, the energy level and the number of pulses is related to which of the following?

A. Amount of sample, element involved

B. Element involved, concentration of the element

C. Concentration of the element, element involved

D. Number of atoms, amount of sample


18. The analysis of X-ray beam by diffraction is similar to spectrum analysis carried out with a diffraction grating.

A. True

B. False


19. The crystal used as X-ray grating has dimensional lattice arrays?

A. One

B. Two

C. Three

D. Four


20. Which of the following can be done to avoid loss of intensities of X-rays due to absorption of long wavelength X-rays?

A. Apparatus must be contained in a chamber

B. Air in the chamber must be replaced by helium

C. Inert gas atmosphere must be provided

D. Proper slits must be used


21. In curved crystal arrangement, angular velocity of the crystal is twice that of the detector.

A. True

B. False


22. Which of the following is the disadvantage of silicon semiconductor detector?

A. Low stable

B. Can be operated only at low temperatures

C. Have low count-rate

D. Low resolution Answer: B

 

23. If the absorption of electromagnetic radiation by matter results in the emission of radiation of the same or longer wavelengths for a long or a short time, the phenomenon is termed as which of the following?

A. Luminescence

B. Fluorescence

C. Phosphorescence

D. Spontaneous emission


24. If the absorption of electromagnetic radiation by matter results in the emission of radiation of the same or longer wavelengths for a short time, the phenomenon is termed as which of the following?

A. Luminescence

B. Fluorescence

C. Phosphorescence

D. Spontaneous emission


25. If the absorption of electromagnetic radiation by matter results in the emission of radiation of the same or longer wavelengths for a long time, the phenomenon is termed as which of the following?

A. Luminescence

B. Fluorescence

C. Phosphorescence

D. Spontaneous emission


26. Prompt emission of X-ray by an atom ionised by a higher energy X-ray is a type of which of the following phenomena?

A. Luminescence

B. Fluorescence

C. Phosphorescence

D. Spontaneous emission


27. The measurement of intensity of fluorescent X-rays provide a simple and way of analysis.

A. Destructive, quantitative

B. Non-destructive, quantitative

C. Destructive, qualitative

D. Non-destructive, qualitative


28. The energy of the emitted X-rays depends upon the of the atom and their intensity depends upon the 

A. Atomic number, amount of sample

B. Mass number, amount of sample

C. Mass number, concentration of atoms

D. Atomic number, concentration of atoms

 

29. The problem of spectral interference is not severe in X-ray spectroscopy.

A. True

B. False


30. In X-ray fluorescence spectrometer, the relationship between the excitation intensity and the intensity of fluorescence does not depend on which of the following?

A. Spectrum of the incident radiation

B. Angle of radiance

C. Molecular weight

D. Incident angle


31. Fluorescent X-ray spectrometers would require only moderate-intensity X-ray tubes.

A. True

B. False


32. Chromatography is a physical method that is used to separate and analyse 

A. Simple mixtures

B. Complex mixtures

C. Viscous mixtures

D. Metals


33. In which type of chromatography, the stationary phase held in a narrow tube and the mobile phase is forced through it under pressure?

A. Column chromatography

B. Planar chromatography

C. Liquid chromatography

D. Gas chromatography


34. In chromatography, the stationary phase can be supported on a solid.

A. Solid or liquid

B. Liquid or gas

C. Solid only

D. Liquid only


35. In chromatography, which of the following can the mobile phase be made of?

A. Solid or liquid

B. Liquid or gas

C. Gas only

D. Liquid only


36. Which of the following cannot be used as an adsorbent in Column adsorption chromatography?

A. Magnesium oxide

B. Silica gel

C. Activated alumina

 

D. Potassium permanganate


37. Which of the following types of chromatography involves the separation of substances in a mixture over a 0.2mm thick layer of an adsorbent?

A. Gas liquid

B. Column

C. Thin layer

D. Paper


38. Chromatography cannot be used to purify volatile substances.

A. True

B. False


39. In Column chromatography, the stationary phase is made of _ and the mobile phase is made of 

A. Solid, liquid

B. Liquid, liquid

C. Liquid, gas

D. Solid, gas


40. Chromatography cannot be used to separate delicate products.

A. True

B. False


41. In Thin layer chromatography, the stationary phase is made of and the mobile phase is made of 

A. Solid, liquid

B. Liquid, liquid

C. Liquid, gas

D. Solid, gas


42. In which of the following type of paper, chromatography does the mobile phase move horizontally over a circular sheet of paper?

A. Ascending paper chromatography

B. Descending paper chromatography

C. Radial paper chromatography

D. Ascending – descending chromatography


43. Liquid chromatography can be performed in which of the following ways?

A. Only in columns

B. Only on plane surfaces

C. Either in columns or on plane surfaces

D. Neither in columns nor on plane surfaces


44. Gas chromatography can be performed in which of the following ways?

A. Only in columns

 

B. Only on plane surfaces

C. Either in columns or on plane surfaces

D. Neither in columns nor on plane surfaces


45. In Gas-liquid phase chromatography, the stationary phase is composed of and the mobile phase is made of 

A. Solid, liquid

B. Liquid, liquid

C. Liquid, gas

D. Solid, gas


46. Which of the following types of chromatography involves the process, where the mobile phase moves through the stationary phase by the influence of gravity or capillary action?

A. Column Chromatography

B. High Pressure Liquid Chromatography

C. Gas Chromatography

D. Planar Chromatography


47. Which of the following steps takes place after injection of feed in Column chromatography?

A. Detection of components

B. Separation in the column

C. Elution from the column

D. Collection of eluted component


48. Components with a strong attraction to the support move more slowly than components with weak attraction.

A. True

B. False


49. What happens during the ‘elution from the column’ phase in chromatography? A.Components with greatest affinity elute first

B. Components with least affinity elute first

C. Components elute in a random manner

D. Components elute according to their concentration in the mixture


50. In chromatogram, the position of peaks on the time axis can be used to determine which of the following?

A. Components of the sample

B. Amount of component in the sample

C. Column efficiency

D. Column resolution


51. In chromatogram, the area under the peak can be used to determine which of the following?

A. Components of the sample

B. Amount of component in the sample

 

C. Column efficiency

D. Column resolution


52. The stationary phase could be a viscous liquid coated over a surface of solid particles.

A. True

B. False


53. Using Chromatogram as detector in Chromatography, a graph is obtained between

  and time.

A. Quantity

B. Density

C. Concentration

D. Specific gravity


54. In older analytical methods, which of the following methods were used to allow movement of the mobile phase?

A. Pumps

B. Pressure

C. Gravity

D. Blowing air into the column



55. Atomic absorption spectroscopy is also called as Absorption Flame Photometry.

A. True

B. False


56. Which of the following is not a component of the emission system in Flame photometer?

A. Burner

B. Atomiser

C. Fuel gases and their regulation

D. Chopper


57. Which of the following is the function of the atomiser in the emission system of Atomic Absorption Spectroscopy?

A. To split the beam into two

B. To break the steady light into pulsating light

C. To break large mass of liquid into small drops

D. To reduce the sample into atomic state



58. Which of the following is not a fuel used in flame photometry?

A. Acetylene

B. Propane

C. Hydrogen

D. Camphor oil

 

59. Which of the following is not the requirement of a good flame in flame photometer?

A. Liquid sample must be evaporated to form solid residue

B. Solid residue must decompose to form atoms

C. Atoms must be produced such that they have the ability to get excited to higher states

D. Atoms must be produced such that they are in stable state


60. Atomic Absorption Spectroscopy is used for the analysis of metals.

A. True

B. False ANSWER KEY:

 


 


1. Which is not TLC development ?

a) Sandwich method

b) Horizontal

c) Teo dimensional

d) Column


2. Which is not an application of TLC ?

a) TLC can be successful used for isolation of vitamin like A,D,andE using silica gel.

b) Identification of drug.

c) Neomycinsulphate can be isolating on activated compound.

d) To determination of moisture.


3. In Iodine chamber, which colour spot are seen ?

a) Red colour.

b) Brown colour.

c) Yellow colour

d) Green colour


4. Half plate size is a) 20×10 cm

b) 10× 10 cm

c) 20× 20 cm

d) 5×5 cm


5. Which method are used for suspension spraying ?

a) Pouring

b) Dipping

c) Spraying

d) Spreading


6. Capillary diameter is

a) 5 mm

b) 6 mm

c) 7 mm

d) 10 mm


7. Which temperature is required for activation of plate ? a) 110-120 C°

b) 120-130 C°

c) 130-149 C°

d) 150-160 C°


8. Which is not Requirement of mobile phase?

a) It should be not toxic.

b) It should be easily available.

 

c) It should be chemically inert.

d) It should be chemically active.


9. How many time is required to dry TLC plate?

a) 15 minutes

b) 30 minutes

c) 10 minutes

d) 7 minutes


10. The principle on which thin layer chromatography is based is that the 

a) Different compounds are absorbed on an absorbent to different degrees

b) Different compounds are absorbed on an absorbent to same degrees

c) Different compounds are adsorbed on an adsorbent to different degrees

d) Different compounds are absorbed on an absorbent to same degrees


11. The size of a thin layer of adsorbent is about _

a) 0.1 mm

b) 0.2 mm

c) 0.3 mm

d) 0.4 mm


12. The chromaplate or thin layer chromatography plate is made up of 

a) Glass

b) Wood

c) Fibre

d) Metal


13. The eluant filled in the closed jar is 

a) Mixture of gases

b) Mixture of a liquid and a gas

c) Mixture of solids

d) Mixture of liquids


14. Select the incorrect statement from the following options.

a) The spots of colorless compounds are invisible to the eyes

b) These spots can be detected by putting the plate under ultraviolet light

c) These spots can be detected by placing the plate in a covered jar containing iodine crystals

d) None of the mentioned


15. The relative adsorption of each component of the mixture is expressed in terms of its


a) Acceleration factor

b) Retardation factor

c) Both acceleration and retardation factor

d) None of the mentioned

 

16. Select the correct statement from the following.

a) Paper chromatography is a type of partition chromatography

b) A special quality paper is used in paper chromatography

c) Chromatography paper contains water trapped in it, which acts as stationary phase

d) All of the mentioned


17. Amino acids detected by spraying the plate with ninhydrin solution is an example of


a) Column chromatography

b) Thin layer chromatography

c) Paper chromatography

d) Liquid chromatography


18. Paper chromatography is based on continuous differential partitioning of components of a mixture between stationary and mobile phases.

a) True

b) False


19. Retardation factor is the ratio of _

a) Distance moved by substance from base line to distance moved by the solvent from base line

b) Distance moved by solvent from base line to distance moved by the substance from base line

c) Distance moved by substance from top line to distance moved by the solvent from top line

d) Distance moved by solvent from top line to distance moved by the substance from top line


20. Which of the following is the principle of Atomic Absorption Spectroscopy?

a) Radiation is absorbed by non-excited atoms in vapour state and are excited to higher states

b) Medium absorbs radiation and transmitted radiation is measured

c) Colour is measured

d) Colour is simply observed


21. In Atomic Absorption Spectroscopy, which of the following is the generally used radiation source?

a) Tungsten lamp

b) Xenon mercury arc lamp

c) Hydrogen or deuterium discharge lamp

d) Hollow cathode lamp


22. In Atomic Absorption Spectroscopy, with what material is the cathode in Hollow cathode lamp constructed?

a) Tungsten

b) Quartz

c) Element to be investigated

d) Aluminium


23. How can the intensity of radiation be increased in Hollow cathode lamp?

a) Addition of non-conductive protective shield of mica

 

b) Addition of nitrogen to neon or argon in the lamp

c) Increasing the pressure of the filling gas

d) Changing the metal of the anode


24. Which of the following is the function of the chopper in Atomic Absorption Spectroscopy?

a) To split the beam into two

b) To break the steady light into a pulsating light

c) To filter unwanted components

d) To reduce the sample into atomic state


25. Which of the following is the function of the Flame or Emission system in Atomic Absorption Spectroscopy?

a) To split the beam into two

b) To break the steady light into pulsating light

c) To filter unwanted components

d) To reduce the sample into atomic state


26. Atomic absorption spectroscopy is also called as Absorption Flame Photometry.

a) True

b) False


27. Which of the following is not a component of the emission system in Flame photometer?

a) Burner

b) Atomiser

c) Fuel gases and their regulation

d) Chopper


28. Which of the following is the function of the atomiser in the emission system of Atomic Absorption Spectroscopy?

a) To split the beam into two

b) To break the steady light into pulsating light

c) To break large mass of liquid into small drops

d) To reduce the sample into atomic state


29. Which of the following is not a fuel used in flame photometry?

a) Acetylene

b) Propane

c) Hydrogen

d) Camphor oil


30. Which of the following is not the requirement of a good flame in flame photometer?

a) Liquid sample must be evaporated to form solid residue

b) Solid residue must decompose to form atoms

c) Atoms must be produced such that they have the ability to get excited to higher states

d) Atoms must be produced such that they are in stable state

 

31. Atomic Absorption Spectroscopy is used for the analysis of metals.

a) True

b) False Answer: A


32. Which of the following options explains the process of ‘sputtering’ that occurs in Hollow Cathode Lamp?

a) Positive ions collide with cathode surface and metal atoms from cathode are ejected

b) Negative ions collide with cathode surface and metal atoms from anode are ejected

c) Positive ions collide with negative ions and metal atoms from anode are ejected

d) Positive ions collide with negative ions and photons are ejected


33. At what pressure should the gases in the sealed tube be maintained in the Hollow cathode lamp?

a) 1 to 5 torr

b) 20 to 30 torr

c) 40 to 50 torr

d) 50 to 55 torr


34. The function of pressure regulators in the emission system of flame photometer is to have a steady flame which is free from flickers.

a) True

b) False


35. In Total consumption burner, only samples of particular droplet size will enter the burner.

a) True

b) False


36. Which of the following is the principle of Flame emission photometers?

a) Radiation is absorbed by non-excited atoms in vapour state and are excited to higher states

b) Medium absorbs radiation and transmitted radiation is measured

c) Colour and wavelength of the flame is measured

d) Only wavelength of the flame is measured


37. In Flame emission photometers, the measurement of is used for qualitative analysis.

a) Colour

b) Intensity

c) Velocity

d) Frequency


38. In Flame emission photometers, the measurement of is used for quantitative analysis.

a) Colour

b) Intensity

 

c) Velocity

d) Frequency


39. Which of the following is not an advantage of Laminar flow burner used in Flame photometry?

a) Noiseless

b) Stable flame for analysis

c) Efficient atomization of sample

d) Sample containing two or more solvents can be burned efficiently


40. Laminar flow burner used in Flame photometers is also known as 

a) Turbulent burner

b) Premix burner

c) Total consumption burner

d) Nozzle mix burner


41. Which of the following is the advantage of prism monochromators?

a) Dispersion is non-overlapping

b) Dispersion occurs in non-linear manner

c) Dispersion is overlapping

d) Dispersion occurs in a linear manner


42. Which of the following is the advantage of grating monochromators?

a) Dispersion is non-overlapping

b) Dispersion occurs in non-linear manner

c) Dispersion is overlapping

d) Dispersion occurs in a linear manner


43. Which of the following is not a detector used in Flame emission photometers?

a) Photronic cell

b) Photovoltaic cell

c) Photoemissive tube

d) Chromatogram


44. Phototubes are more sensitive than photovoltaic cells.

a) True

b) False


45. Which of the following is not an application of Flame emission photometers?

a) Analysis of biological fluids

b) Determination of sodium, potassium in soil

c) Determination of metals such as Mn, Cu

d) Analysis of complex mixtures


46. Which of the following is not an advantage of a photovoltaic cell which is used as a detector in Flame emission photometers?

 

a) Portable

b) No external supply

c) Robust in construction

d) Does not show fatigue


47. Beer Lambert’s law gives the relation between which of the following?

a) Reflected radiation and concentration

b) Scattered radiation and concentration

c) Energy absorption and concentration

d) Energy absorption and reflected radiation


48. In which of the following ways, absorption is related to transmittance?

a) Absorption is the logarithm of transmittance

b) Absorption is the reciprocal of transmittance

c) Absorption is the negative logarithm of transmittance

d) Absorption is a multiple of transmittance


49. Which of the following is not a limitation of Beer Lambert’s law, which gives the relation between absorption, thickness and concentration?

a) Concentration must be lower

b) Radiation must have higher bandwidth

c) Radiation source must be monochromatic

d) Does not consider factors other than thickness and concentration that affect absorbance


50. Beer’s law states that the intensity of light decreases with respect to 

a) Concentration

b) Distance

c) Composition

d) Volume


51. Lambert’s law states that the intensity of light decreases with respect to 

a) Concentration

b) Distance

c) Composition

d) Volume


52. The representation of Beer Lambert’s law is given as A = abc. If ‘b’ represents distance, ‘c’ represents concentration and ‘A’ represents absorption, what does ‘a’ represent?

a) Intensity

b) Transmittance

c) Absorptivity

d) Admittance


53. Which of the following is not true about Absorption spectroscopy?

a) It involves transmission

b) Scattering is kept minimum

 

c) Reflection is kept maximum

d) Intensity of radiation leaving the substance is an indication of a concentration


54. Transmittance is given as T = P/Po. If Po is the power incident on the sample, what does P represent?

a) Radiant power transmitted by the sample

b) Radiant power absorbed by the sample

c) Sum of powers absorbed and scattered

d) Sum of powers transmitted and reflected


55. What is the unit of absorbance which can be derived from Beer Lambert’s law?

a) L mol-1 cm-1

b) L gm-1 cm-1

c) Cm

d) No unit Answer: D


56. What is the unit of molar absorptivity or absorptivity which is used to determine absorbance A in Beer Lambert’s formula?

a) L mol-1 cm-1

b) L gm-1 cm-1

c) Cm

d) No unit


57. The different types of energies associated with a molecule are 

a) Electronic energy

b) Vibrational energy

c) Rotational energy

d) All of the mentioned


58. During the motion, if the centre of gravity of molecule changes, the molecule possess


a) Electronic energy

b) Rotational energy

c) Translational energy

d) Vibrational energy


59. The region of electromagnetic spectrum for nuclear magnetic resonance is 

a) Microwave

b) Radio frequency

c) Infrared

d) UV-rays


60. The results obtained by spectroscopic methods are less reliable, less reproducible and incorrect than classical methods.

 

a) True

b) False ANSWER KEY:


1-D 11-B 21-D 31-A 41-A 51-B

2-D 12-A 22-C 32-A 42-D 52-C

3-B 13-D 23-A 33-A 43-D 53-C

4-A 14-D 24-B 34-A 44-A 54-A

5-C 15-B 25-D 35-B 45-D 55-D

6-A 16-D 26-A 36-C 46-D 56-A

7-B 17-C 27-D 37-A 47-C 57-D

8-D 18-A 28-C 38-B 48-C 58-C

9-B 19-A 29-D 39-D 49-B 59-B

10-C 20-A 30-D 40-B 50-A 60-B

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