有甲、乙、丙、丁四种无色溶液,它们分别是HCl、H2SO4、BaCl2、Na2CO3

有甲、乙、丙、丁四种无色溶液,它们分别是HClH2SO4BaCl2Na2CO3溶液中的一种。为区别这四种溶液,现将它们两两混合并得到下面现象,则甲、乙、丙、丁分别是(  )

溶液

+

+

+

+

现象

无明显现象

白色沉淀

白色沉淀

无色气体

A.HClBaCl2H2SO4Na2CO3

B.H2SO4HClBaCl2Na2CO3

C.HClH2SO4BaCl2Na2CO3

D.H2SO4Na2CO3HClBaCl2

答案

C

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