Question

把3体积的NO₂气体，依次通过下列3个分别装有①NaHCO₃饱和溶液，②浓H₂SO₄，③Na₂O₂的装置后，用排水法把残留气体收集到集气瓶中，集气瓶内气体应是(同温同压下测定)

A.1体积NO                                                   

B.2体积NO₂和0.5体积O₂

C.2体积O₂                                                                                                         

D.0.25体积O₂

Answer 1

解析：

答案：D