已知三种金属(在化合物中都呈+2价)的活动性顺序为X>Y>Z,某同学设计进行了如下实验,请你从理论上分析肯定不成功的实验是 请选择DCBA)F't1]-N3J9e;j0f5N(E2R+i7{:i+^)F3r
A.实验一:X+YSO4===XSO4+Y5N(E2R+i7{:i+^)F3r
B.实验二:Z+YSO4===ZSO4+Y5N(E2R+i7{:i+^)F3r
C.实验三:X+H2SO4(稀)===XSO4+H2↑5N(E2R+i7{:i+^)F3r
D.实验四:Z+H2SO4(稀) 不反应5N(E2R+i7{:i+^)F3r