如图所示,打开“雪碧”瓶,把从饮料中溢出的气体通入澄清的石灰

如图所示,打开“雪碧”瓶,把从饮料中溢出的气体通入澄清的石灰水中,发现澄清的石灰水变浑浊,该实验验证了从饮料溢出的气体中含有较多的(  )

A.氧气 B.二氧化碳 C.氮气 D.水蒸气

答案

【考点】二氧化碳的检验和验满.

【专题】物质的鉴别题;常见气体的实验室制法、检验、干燥与净化.

【分析】根据使澄清石灰水变浑浊的物质是二氧化碳考虑.

【解答】解:

打开“雪碧”瓶,把从饮料中溢出的气体通入澄清的石灰水中,发现澄清的石灰水变浑浊,说明溢出的气体中含有较多的二氧化碳气体.

故选B.

【点评】我们利用澄清的石灰水来检验二氧化碳气体,不能用能否支持燃烧来验证二氧化碳.因不支持燃烧的气体除去二氧化碳之外,还有氮气.

 

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