下列反应中水作还原剂的是A.2F2+2H20===4HF+O2B.SO2+H20===H2SO3C.2NA+2H2O===2NAOH+H2D.2H2+O2===2H2O
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![下列反应中水作还原剂的是A.2F2+2H20===4HF+O2B.SO2+H20===H2SO3C.2NA+2H2O===2NAOH+H2D.2H2+O2===2H2O](/uploads/image/z/4834071-63-1.jpg?t=%E4%B8%8B%E5%88%97%E5%8F%8D%E5%BA%94%E4%B8%AD%E6%B0%B4%E4%BD%9C%E8%BF%98%E5%8E%9F%E5%89%82%E7%9A%84%E6%98%AFA.2F2%2B2H20%3D%3D%3D4HF%2BO2B.SO2%2BH20%3D%3D%3DH2SO3C.2NA%2B2H2O%3D%3D%3D2NAOH%2BH2D.2H2%2BO2%3D%3D%3D2H2O)
下列反应中水作还原剂的是A.2F2+2H20===4HF+O2B.SO2+H20===H2SO3C.2NA+2H2O===2NAOH+H2D.2H2+O2===2H2O
下列反应中水作还原剂的是
A.2F2+2H20===4HF+O2
B.SO2+H20===H2SO3
C.2NA+2H2O===2NAOH+H2
D.2H2+O2===2H2O
下列反应中水作还原剂的是A.2F2+2H20===4HF+O2B.SO2+H20===H2SO3C.2NA+2H2O===2NAOH+H2D.2H2+O2===2H2O
选A
A中F从0价到-1价,O从-2价到0价,O被氧化,H2O做还原剂
B不是氧化还原反应
C中Na从0到+1,H从+1到0,H被还原,水作氧化剂
D中水是产物,不能做什么剂