【題目】下列對SO2和SO3的敘述正確的是( )

A.通常條件下,都是無色氣體,都易溶于水

B.都是酸性氧化物,其水溶液都是強酸

C.都可使品紅溶液褪色,加熱時紅色又能再現(xiàn)

D.都能跟堿溶液反應(yīng)

【答案】D

【解析】通常條件下,SO3是固態(tài),A項錯誤;二者都是酸性氧化物,SO2的水溶液是弱酸,B項錯誤;SO2具有漂白性,SO3沒有漂白性,C項錯誤;酸性氧化物能和堿反應(yīng),D項正確。

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