摘要:6.用过量的H2SO4.NaOH.NH3·H2O.NaCl等溶液.按 右图所示步骤分开五种离子.则溶液①.②.③.④是 A.①NaCl②NaOH③NH3·H2O④H2SO4 B.①H2SO4②NaOH③NH3·H2O④NaCl C.①H2SO4②NH3·H2O③NaOH④NaCl D.①NaCl②NH3·H2O③NaOH④H2SO4
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