下列反应中,电子转移数目由多到少排序正确的是( )
①Cl2+H2O="===HClO+HCl " ②2F2+2H2O====4HF+O2
③2Na+2H2O====2NaOH+H2↑ ④2Al+3Cl22AlCl3
A.①②③④ | B.④②③① | C.④③②① | D.②④③① |
下列反应中,电子转移数目由多到少排序正确的是( )
①Cl2+H2O="===HClO+HCl " ②2F2+2H2O====4HF+O2
③2Na+2H2O====2NaOH+H2↑ ④2Al+3Cl22AlCl3
A.①②③④ | B.④②③① | C.④③②① | D.②④③① |