下列反应中,硫酸不作氧化剂的是( )
A.2HBr+H2SO4(浓)Br2+SO2↑+2H2O |
B.Ca3(PO4)2+2H2SO4(浓)2CaSO4+Ca(H2PO4)2 |
C.2Al+3H2SO4====Al2(SO4)3+3H2↑ |
D.2KMnO4+5H2S+3H2SO4====K2SO4+2MnSO4+5S↓+8H2O |
下列反应中,硫酸不作氧化剂的是( )
A.2HBr+H2SO4(浓)Br2+SO2↑+2H2O |
B.Ca3(PO4)2+2H2SO4(浓)2CaSO4+Ca(H2PO4)2 |
C.2Al+3H2SO4====Al2(SO4)3+3H2↑ |
D.2KMnO4+5H2S+3H2SO4====K2SO4+2MnSO4+5S↓+8H2O |