向FeCl3和BaCl2的酸性混合溶液中通入SO2气体,有白色沉淀生成。此沉

向FeCl3和BaCl2的酸性混合溶液中通入SO2气体,有白色沉淀生成。此沉淀是                                                                   (    )

A.BaSO4             B.FeS          C.BaSO3             D.S

答案

A


解析:

此题隐含了Fe3+的强氧化性,容易误选C

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