题目内容

The correct description about the molecular ion peak is ( ).

A. The mass-to-charge ratio of the molecular ion peak is equal to the relative molecular mass of the compound
B. The peak with the largest mass is the molecular ion peak
C. The second highest mass peak is the molecular ion peak
D. The most intense peak is the molecular ion peak

查看答案

搜索结果不匹配？点我反馈

更多问题

Among the following compounds, which has the weakest molecular ion peak? ( ) .

A. aromatic ring
B. conjugated alkenes
C. ester
D. alicyclic compound

In the mass spectrum of the compound C2H5Br, the relative intensity ratio of the M and M+2 peaks is about ( ) .

A. 1:1
B. 2:1
C. 3:1
D. 4:1

The m/z of the molecular ion peak of a compound is 87. ( ) may be the formula of the compound.

A. C7H7O2
B. C5H10O
C4H9NO
D. C6H15

The degree of unsaturation of benzene is ( ) .

A. 3
B. 4
C. 5
D. 6