Q58 · CSIR NET Chemistry, June 2019
Paper: CSIR NET June 2019 · Subject: Organic Chemistry · Chapter: Organic Spectroscopy · Topic: Mass Spec · Marks: 2 · Difficulty: Medium
The compound that will show a base peak at $m / z 120$ in its EI mass spectrum is
(a)
(b)
(c)
(d)
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
Methyl salicylate loses CH₃OH by the ortho effect, giving the m/z 120 ion (152 − 32) as the base peak (c).
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