Q91 · CSIR-NET Chemistry, June 2011

Paper: CSIR-NET June 2011 · Subject: Organic Chemistry · Chapter: Organic Spectroscopy · Topic: Mass Spec · Marks: 2 · Difficulty: Medium

In the mass spectrum of dichlorobenzene the ratio of the peaks at $m / z 146$, 148 and 150 , is:

(a)1:1:1

(b)3:3:1

(c)1:2:1

(d)9:6:1

Answer

Answer: D ✓ checked by 4AB · confidence high

Explanation

Two chlorines (³⁵Cl:³⁷Cl = 3:1) give M : M+2 : M+4 = 9 : 6 : 1.

Study loop for Organic Spectroscopy