X、Y、Z三种金属,把Y投入X(NO3)2溶液中,Y表面有X析出,把X投入Z(NO3

XYZ三种金属,把Y投入X(NO3)2溶液中,Y表面有X析出,把X投入ZNO32溶液中,X表面有Z析出,XYZ三种金属活动性由强到弱的顺序是

AZYX        B.XYZ        C.YXZ        D.XZY

   

答案

C

   

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