% Q' D0 k8 q: y) \第九题化学英语题 2 p7 a' J( K. J# L. sWhat is always correct about the molecular ion, M+, in a mass spectrum of a compound?3 p4 ~, b \: j: V" a; X. J6 g(欢迎访问avcar:https://avcar.vip)
A. The M+ ion peak has the smallest m/z ratio in the mass spectrum. ! [" m! [$ ^5 m$ m3 t- _B. The m/z ratio of the M+ ion peak gives the relative molecular mass of the molecule. " v) V3 m7 m* z; u" H: P* {C. The M+ ion is the most stable fragment formed during electron bombardment. : N6 p2 x# t4 {1 T5 p+ {D. The M+ ion peak has the greatest intensity in the mass spectrum.- x G* b3 `' v. E- U2 H(欢迎访问avcar:https://avcar.vip)