在M+H 2 SO 4 (稀)→Fe 2 (SO 4 ) 3 +N(M、N分别代表一种物质,化学方程式未配平)反应中,M可能是下列物质中的1Fe、2Fe 2 O 3 、3Fe(OH) 3 、4FeCl 3 ( )
A.
①②
B.
①②③
C.
②③
D.
②③④
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