K2Cr2O7+4H2SO4= K2SO4+Cr2(SO4)3+4H2O+3[O]
As you can see during this reaction you obtain the O that you need for the oxidation of alcohol.
Oxidation number of h is 2
Isopropyl alcohol on oxidation forms acetone, but the further oxidation on heating produces acetic acid , carbon dioxide and water.CH3-CHOH-CH3 ------K2Cr2O7/H2SO4-----> CH3-CO-CH3 + H2OBalanced:K2Cr2O7 + 3 CH3CHOHCH3 + 4 H2SO4 --> 3 CH3COOH + Cr2(SO4)3 + K2SO4 + 4 H2O
K2Cr2O7 + 6 KI + 7 H2So4 = Cr2(So4)3 + 4 K2So4 + 3 I2 + 7 H2O
C2H2 or (HCtriplebond CH) --20%H2SO4,HGSO4,60 to 80 dgree--> CH3CHO --k2Cr2O7/conc. H2SO4 [O]--> CH3COOH --Ca(OH)2--> (CH3COO)2Ca --Dry distillation-->CH3COCH3
2K2Cr2O7+ 8H2SO4+ 3C2H5OH --> 2Cr2(SO4)3+ 2K2SO4 + 3CH3COOH + 11H2O
k2cr2o7+FeSO4+H2SO4 --> Cr2(SO4)3+Fe2(SO4)3+K2SO4+H2O
Oxidation number of h is 2
Isopropyl alcohol on oxidation forms acetone, but the further oxidation on heating produces acetic acid , carbon dioxide and water.CH3-CHOH-CH3 ------K2Cr2O7/H2SO4-----> CH3-CO-CH3 + H2OBalanced:K2Cr2O7 + 3 CH3CHOHCH3 + 4 H2SO4 --> 3 CH3COOH + Cr2(SO4)3 + K2SO4 + 4 H2O
K2Cr2O7 + 6 KI + 7 H2So4 = Cr2(So4)3 + 4 K2So4 + 3 I2 + 7 H2O
C2H2 or (HCtriplebond CH) --20%H2SO4,HGSO4,60 to 80 dgree--> CH3CHO --k2Cr2O7/conc. H2SO4 [O]--> CH3COOH --Ca(OH)2--> (CH3COO)2Ca --Dry distillation-->CH3COCH3
2K2Cr2O7+ 8H2SO4+ 3C2H5OH --> 2Cr2(SO4)3+ 2K2SO4 + 3CH3COOH + 11H2O
+1 for H +6 for S -2 for each O
+1, +6, and -2 respectively
K2Cr2O7(aq) + 3SO2(g) + H2SO4(aq) Cr2(SO4)3(aq) + K2SO4(aq) + H2O(l)
2K2Cr2O7 + 2H2SO4 + 3C2H5OH ---> 2Cr2(SO4)3 + 2K2SO4 + 3CH3COOH + 11H2O.
Cr2O72-(aq) + 3SO2 (g) + 2H+(aq)= 2Cr3+ (aq) + 3SO4 2- (aq) H2O (l)
H = +1 s = +6 o = -2