试题与答案

某气体可能含有H2、CO、N2、CH4中的一种或两种。该气体在足量的氧气中充分燃

题型:不定项选择题

题目:

某气体可能含有H2、CO、N2、CH4中的一种或两种。该气体在足量的氧气中充分燃烧后,将全部生成物依次通过足量的浓硫酸(只吸收水分)和澄清石灰水溶液,发现浓硫酸的质量增加,澄清石灰水变浑浊,则该气体的成分不可能是[ ]

A.CH4

B.CO和N2

C.H2和CO

D.CO和CH4

答案:

答案:B

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