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【题目】下列对SO2和SO3的叙述正确的是( )

A.通常条件下,都是无色气体,都易溶于水

B.都是酸性氧化物,其水溶液都是强酸

C.都可使品红溶液褪色,加热时红色又能再现

D.都能跟碱溶液反应

【答案】D

【解析】通常条件下,SO3是固态,A项错误;二者都是酸性氧化物,SO2的水溶液是弱酸,B项错误;SO2具有漂白性,SO3没有漂白性,C项错误;酸性氧化物能和碱反应,D项正确。

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