下列有关物质性质的运用错误的是         (    )    ①Na2

 下列有关物质性质的运用错误的是         (    )

    ①Na2O2与CO2反应放出的氧气:供矿山、坑道等地呼吸之用

    ②各种金属单质特殊的焰色:节日焰火

    ③三聚氰胺含有化合态的氮元素:补充人体蛋白质

    ④氢氟酸有强腐蚀性:雕刻玻璃

    A.①③        B.②④         C.①④     D.②③

 

答案

 D

 

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