下列实验不能验证N2O2与H2O反应后的溶液中存在大量H2O2的是向溶液中加入酚酞试剂B．向溶液中加入MnO2粉末下列实验不能验证N 2 O 2 与H 2 O反应后的溶液中存在大量H 2 O 2 的是向溶液中加入 酚酞试剂 B．向溶液中加入MnO 2 粉末 C．向溶液中通入CO 2 气体 D．向溶液中加入KMnO 4 溶液

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