题目内容
下列离子方程式正确的是 ( )
A.少量金属钠放人醋酸中:CH3COOH+Na→CH3COO-+H2↑ |
B.用银氨溶液检验乙醛中的醛基: CH3CHO+2Ag(NH3)2++2OH-CH3COO-+NH4++3NH3+2Ag↓+H2O |
C.苯酚钠溶液中通入少量CO2:CO2+H2O+2C6H5O-→2C6H5OH+2CO32- |
D.少量醋酸滴入纯碱中:CO32-+2CH3COOH→2CH3COO-+CO2↑+H2O |
B
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