A.用干燥的蓝色石蕊试纸                       B.用干燥的有色布条

C.将气体通入硝酸银溶液                       D.用湿润的碘化钾淀粉试纸

A.水、汽油、酒精                                  B.AgNO₃溶液、NaOH溶液、KI溶液

C.汽油、酒精、NaOH溶液                      D.NaCl溶液、NaBr溶液、KI溶液

①氯气  ②二氧化硫  ③活性炭  ④过氧化钠

A.①③                B.②③                  C.①④              D.②④

A.1∶2∶3              B.3∶2∶1                C.1∶3∶2               D.2∶3∶1

A.Cl₂、HCl、HBr                                 B.HCl、NaBr、AgNO₃、Na₂CO₃四种溶液

C.NaCl、NaBr、NaI三种溶液                D.HCl、NaBr、NaNO₃三种溶液

A.IBr是双原子分子                               B.IBr是单质分子

C.在IBr中碘和溴的化合价均为零             D.和NaOH溶液反应生成NaBr和NaIO

A.氯水               B.碘化钾溶液              C.碘酒              D.溴水

A.1∶2               B.2∶1              C.1∶4                D.4∶1

A.AgNO₃溶液，稀硝酸                  B.AgNO₃溶液，稀硫酸

C.AgNO₃溶液，浓硝酸                  D.AgNO₃溶液

A.I₂O₃                B.I₂O₄              C.I₄O₇                D.I₄O₉