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- 1. Multiple Choice
Mass spectrometry is not a spectroscopy technique because
It absorbs light
It emits light
Does not absorb light
Uses electromagnetic radiation
- 2. Multiple Choice
In Mass spectrometry molecules are bombarded with high energy
Protons
Neutrons
X-ray beams
Electrons
- 3. Multiple Choice
In electron impact ionisation method in MS it produces _____ in the first step
Cation
Anion
Radical
Cation radical
- 4. Multiple Choice
Highest mass to charge peak in Mass spectra is called
Base peak
Molecular ion peak
Isotopic peak
Fragment peak
- 5. Multiple Choice
High abundant fragment peak in Mass spectra is called as
Molecular ion peak
Isotopic peak
Base peak
Fragment peak
- 6. Multiple Choice
Relative abundance of all fragment ions are measured with reference to
Molecular ion peak
Base peak
Isotopic peak
None of the above
- 7. Multiple Choice
Isotopic peak ratio of chlorine containing fragments in Mass spectra will be in
1:1
2:1
3:1
4:1
- 8. Multiple Choice
Isotopic peak ratio of bromine containing fragments in Mass spectra will be in
1:1
2:1
3:1
4:1
- 9. Multiple Choice
Molecular ion peak of ethylamine in Mass spectra will be observed at
Even mass
Odd mass
Fraction mass
Not definite
- 10. Multiple Choice
Identify the base peak in the given Mass spectrum
100
99
82
57
- 11. Multiple Choice
Identify the molecular ion peak and base peak in the Mass spectrum
94
66
77
55
- 12. Multiple Choice
Which statement is true for the following Mass spectrum
Indicates presence of Bromine
Indicates presence of chlorine
Indicates presence of nitrogen
Base peak and molecular ion peak are same
- 13. Multiple Choice
The following spectra indicates presence of
Nitrogen
Chlorine
Bromine
Above elements are absent
- 14. Multiple Choice
Following Mass spectra shows the presence of
Nitrogen
Bromine
Chlorine
None of the above
- 15. Multiple Choice
Mass spectra is mainly useful for finding
Conjugation
Functional groups
Molecular weight
Atomic mass
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