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