Nuclear magnetic resonance is an analytical way of carrying out a particular task, especially the execution or performance of an artistic work or a scientific procedure of chemistry that is used in determining the content and purity of a sample as well as its molecular structure and in quality control and research. This is a test that can detect the structure of a product at the molecular level. Under Indian law, NMR testing is not necessary for honey that is marketed locally, but this test is necessary in the case of exports. Under Indian law, NMR testing is not necessary for honey that is marketed locally, but this test is necessary in the case of exports.
1. Nuclear magnetic resonance is a physical phenomenon in which ------- is a string constant.
A. Nuclei
B. Isotope
C. Molecules
D. None of these
2. Nuclear magnetic resonance spectroscopy is widely used to determine the structure of:
A. Inorganic molecules
B. Organic molecules
C. Sub molecules
D. All of the above-mentioned
3. NMR is also routinely used in advanced medical imaging techniques, such as:
A. X-Rays
B. MRI
C. Ultrasound
D. Heat therapy
4. Since the resolution of the imaging technique depends on the ------------- of the magnetic field gradient.
A. Magnitude
B. Volume
C. Vector
D. Displays Ment
5. Which of the following principle of NMR usually involves sequential steps?
A. Constant magnetic field B0
B. Static magnetic field B0
C. Nuclear spins around B0
D. All of the above-mentioned
6. Nuclear magnetic resonance was first described and measured in molecular beams by whom?
A. Isidor Rabi
B. Felix Bloch
C. Julian Schwinger
D. Hans Georg Dehmelt
7. Nuclear magnetic resonance was first described and measured in molecular beams in which year?
A. In the year 1938
B. In the year 1948
C. In the year 1958
D. In the year 1978
8. ---------------------- likely observed nuclear magnetic resonance in 1941.
A. Yevgeny Zavoisky
B. Isidor Rabi
C. Felix Bloch
D. Julian Schwinger
9. The development of NMR as a technique in:
A. Analytical chemistry
B. Biochemistry
C. Both of the above
D. None of these
10. It can also be used for purity determination, provided that the structure and-----------------------.
A. Molecular weight
B. Internal standard
C. Both of the above
D. None of the above
11. Which is the application of NMR?
A. Flow probes for NMR spectroscopy
B. Process control
C. Earth's field NMR
D. All of the above-mentioned
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