阅读下面这首古诗，回答两题。
                                                                                                                                              客发笤溪^①
                                                                                                                                                 清 叶燮
                                                                                                                            客心如水水如愁，容易归帆赴疾流。
                                                                                                                            忽讶船窗送吴语，故山月已挂船头。   
      【注】①笤溪是流经诗人家乡吴兴的一条河流。

镍氢充电电池有着广泛应用，镍（Ni）及其化合物能发生下列反应：
①Ni+2HCl=NiCl₂+H₂↑   ②NiO+2HCl=NiCl₂+H₂O 
③NiO₂+4HCl=NiCl₂+Cl₂+2H₂O   Ni（OH）₂不溶于水，对上述反应的分析判断错误的是（）