NH2OH、N2H4、NH3和HN3四种溶液的浓度都是0.1 mol•dm‒3,按溶液pH由低到高顺序排列正确的是A. HN3 B. N2H4 C. HN3 D. NH2OH

NH2OH、N2H4、NH3和HN3四种溶液的浓度都是0.1 mol•dm‒3,按溶液pH由低到高顺序排列正确的是

A. HN3 < NH2OH < N2H4 < NH3

B. N2H4 < NH3 < NH2OH < HN3

C. HN3 < N2H4 < NH2OH < NH3

D. NH2OH < N2H4 < NH3 < HN3