下列物质在空气中久置会发生变质,且在变质过程中,既有氧化还原

下列物质在空气中久置会发生变质,且在变质过程中,既有氧化还原反应发生,又有非氧化还原反应发生的是

A.氢氧化钠固体      B.氯化钠固体      C.金属钠        D.生石灰

答案

C

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