下列反应中,氧化剂与还原剂物质的量之比为1∶2的是
A.3S+6NaOH===2Na2S+Na2SO3+3H2O |
B.2CH3COOH+Ca(ClO)2===2HClO+Ca(CH3COO)2 |
C.I2+2NaClO3===2NaIO3+Cl2 |
D.4HCl(浓)+MnO2MnCl2+Cl2↑+2H2O |
下列反应中,氧化剂与还原剂物质的量之比为1∶2的是
A.3S+6NaOH===2Na2S+Na2SO3+3H2O |
B.2CH3COOH+Ca(ClO)2===2HClO+Ca(CH3COO)2 |
C.I2+2NaClO3===2NaIO3+Cl2 |
D.4HCl(浓)+MnO2MnCl2+Cl2↑+2H2O |