Which of the following is the mass spectrum of ethylamine?
A - HSC - SSCE Chemistry - Question 9 - 2024 - Paper 1
Question 9
Which of the following is the mass spectrum of ethylamine?
A.
B.
C.
D.
Worked Solution & Example Answer:Which of the following is the mass spectrum of ethylamine?
A - HSC - SSCE Chemistry - Question 9 - 2024 - Paper 1
Step 1
Identify the Mass Spectrum
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Answer
To identify the mass spectrum of ethylamine, we look for characteristic peaks in the spectra provided.
Ethylamine (C₂H₅NH₂) has a molecular weight of approximately 45 g/mol. In the mass spectrum, we expect to see a significant peak corresponding to this molecular weight.
Additionally, common fragments such as the ethyl group (C₂H₅⁺) or the amine group (NH₂⁺) should show at least moderate intensity.
Step 2
Determine the Correct Option
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Answer
Upon analyzing the options:
A shows no peak at m/z 45.
B has a prominent peak at m/z 45, indicating it is ethylamine.
