Q88 · CSIR-NET Chemistry, December 2015

Paper: CSIR-NET December 2015 · Subject: Organic Chemistry · Chapter: Organic Spectroscopy · Topic: Mass Spec · Marks: 2 · Difficulty: Medium

In the mass spectrum of 1,2-dichloroethane, approximate ratio of peaks at $m / z$ values 98, 100, 102 will be
(a)$3: 1: 1$
(b)$9: 6: 1$
(c)$1: 1: 2$
(d)$1: 2: 1$
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
Two chlorines give M : M+2 : M+4 = 9 : 6 : 1 for m/z 98, 100, 102.

Study loop for Organic Spectroscopy

1. Practise the PYQsPrevious-year questions, with answers

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