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【单选题】
下列关于金属钠的叙述,错误的是( )。
A.
钠与水作用放出氢气,同时生成氢氧化钠
B.
少量钠通常贮存在煤油里
C.
和Au、Ag等金属一样,钠在自然界中可以以单质的形式存在
D.
金属钠的熔点低,密度、硬度都较低
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