List of top Pharmaceutical Analysis Questions asked in GPAT

Knorr synthesis
The major product formed in the above‐given Knorr synthesis is:
Isobutane upon bromination under the influence of ultraviolet light at 127 °C affords the following major product:
Potential at the equivalence point for a redox reaction
\(\mathrm{aOX1} + \mathrm{bRED2} \rightleftharpoons \mathrm{bOX2} + \mathrm{aRED1}\)
is given by the equation:
Benzene theoretically can have ____ number of possible fundamental absorption bonds in the IR spectrum
The titration of a strong acid with a strong base is represented by plot _____ .
Match List I with List II
List I-BuffersList II-pH Value
AHCl and KClI8 to 10
BHCl and Potassium Hydrogen PhthalateII2.2 to 4.0
CNaOH and Potassium Hydrogen PhthalateIII1.2 to 2.2
DH3BO3, NaOH, and KClIV4.2 to 5.8

Choose the correct answer from the options given below:
A compound gives two fragments in a mass spectrometer. They are C19H7N+ and C19H50+. To separate peaks due to these fragments the instrument should have a resolution of
What will be type of proton NMR spectrum of 2.2.-dimethylpropane
The size of aqueous filled pores is_____°A
For very weak acidic drugs, with pKa >8.
In Gambir-fluorescin test the petroleum spirit layer shows
Which among the following nuclei can exhibit NMR spectrum?
The wave length at which maximum absorption of radiation takes place is known as
Which of the following is a half-reaction?
Which among the following is not a calibration parameter for UV visible spectrophotometer?
A. Control of wavelength 
B. Control of absorbances 
C. Resolution 
D. Control of transmitted radiation 
E. Spectral slit width 
Choose the correct answer from the options given below: 
Drug products that contain the same therapeutic moiety but as different salts, esters or complexes are called as :
Following statement is more accurate with respect to limitations of Arrhenius relationship for stability prediction
What is the approximate chemical shift ranges for protons attached to aldehydic groups?
The solvent used in NMR spectroscopy with the highest level of deuteriation among these is
Globar source in infra red spectrophotometer is____.
The principle of gas-liquid chromatography is _____.
The principle of liquid-liquid extraction is_____.
The chief product obtained by the reaction of neo-pentyl bromide under E1 reaction conditions;
Anti addition of bromine to trans-2-butene yields:
Which of the following second generation \(\beta_1\) - selective blockers contains 1, 3, 5 - thiadiazole ring in its structure ?