为了经久耐用,在灯泡中可填充的气体是( ) A.氧气 B.二氧化碳

为了经久耐用,在灯泡中可填充的气体是(  )

A.氧气 B.二氧化碳 C.氮气 D.二氧化硫

答案

【考点】6K:常见气体的用途.

【专题】144:物质的性质与用途;312:性质决定用途;528:化学与生活.

【分析】物质的性质决定物质的用途,可以根据各种气体的性质、用途分析解答.

【解答】解:氮气的化学性质不活泼,在高温下也很难和其它物质发生反应,为了经久耐用,在灯泡中可填充氮气;

故选C.

【点评】本题考查了各种气体的性质、用途,属于基础知识,大家要熟记课本上常见物质的用途才能正确解答.

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