试题与答案

下列反应的离子方程式正确的是( ) A.过量的NaHSO4与Ba(OH)2反应:

题型:选择题

题目:

下列反应的离子方程式正确的是(  )

A.过量的NaHSO4与Ba(OH)2反应:H++SO2-4+Ba2++OH-=BaSO4↓+H2O

B.向次氯酸钙溶液通入SO2:Ca2++2ClO-+SO2+H2O=CaSO3↓+2HC1O

C.用石墨作电极电解饱和NaCl溶液:Cl-+2H2O

电解
.
.
Cl2↑+H2↑+OH-

D.向C6H5ONa溶液中通入少量CO2:C6H5O-+CO2+H2O→C6H5OH+HCO-3

答案:

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