Fourier Transform NMR Spectroscopy Online Exam Quiz
Fourier Transform NMR Spectroscopy GK Quiz. Question and Answers related to Fourier Transform NMR Spectroscopy. MCQ (Multiple Choice Questions with answers about Fourier Transform NMR Spectroscopy
A 15.4 MHz crystal generates the ___ resonance frequency.
Options
A : Hydrogen
B : Deuterium
C : Tritium
D : Helium
Fourier transform can be accomplished by using which of the following components?
Options
A : Spin decoder
B : Detector
C : Spectrum analyser
D : Oscilloscope
How can the need for an array of narrow-band filters and detectors be eliminated?
Options
A : By using multi-channel excitation
B : By using a detector for each frequency
C : By reducing the number of detectors
D : By using Fourier transform
In gas-liquid chromatography, when films are used in the interior of the capillary column, then what is the value of Eddy diffusion?
Options
A : Greater than 1
B : Less than 1
C : Zero
D : Less than zero
Which of the following conditions will cause the efficiency of the column to increase?
Options
A : Plate number becomes greater, plate height becomes smaller
B : Plate number becomes smaller, plate height becomes smaller
C : Plate number becomes greater, plate height becomes larger
D : Plate number becomes greater, plate height becomes larger
Which of the following is the disadvantage of multichannel excitation?
Options
A : Low sensitivity
B : Low resolution
C : Small number of frequencies is present
D : Uneconomical
Which of the following is the distance that the solute moves while undergoing one partition?
Options
A : Retention distance
B : Distribution constant
C : Plate height
D : Column packing length
Which of the following is the expression for Eddy diffusion in the column, if '?' represents obstruction factor, 'dp' represents particle diameter, 'DM' represents Solute diffusion co-efficient and '?' represents function for packing uniformity?
Options
A : ? dM
B : 2 ? DM
C : DM ?
D : ?/dM
Which of the following is the expression for longitudinal diffusion in the column, if '?' represents obstruction factor, 'dM' represents particle diameter, 'DM' represents Solute diffusion co-efficient and '?' represents function for packing uniformity?
Options
A : ? dM
B : 2 ? DM
C : DM ?
D : ?/dM
Which of the following must be done to improve sensitivity?
Options
A : Frequency sweep mode must be preferred
B : Field sweep mode must be preferred
C : Single channel excitation must be preferred
D : Multichannel excitation must be preferred
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