2Cr + 3Cl2 = 2CrCl3
CrCl3 + 3NaOH = Cr(OH)3 + 3NaCl
2Cr(OH)3 = Cr2O3 + 3H2O
Cr2O3 + 3H2SO4 = Cr2(SO4)3 + 3H2O
Cr2(SO4)3 + 7H2O + 3K2S2O6 + 3O2 = K2Cr2O7 + 4KHSO4 + 5H2SO4
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Verified answer
2Cr + 3Cl2 = 2CrCl3
CrCl3 + 3NaOH = Cr(OH)3 + 3NaCl
2Cr(OH)3 = Cr2O3 + 3H2O
Cr2O3 + 3H2SO4 = Cr2(SO4)3 + 3H2O
Cr2(SO4)3 + 7H2O + 3K2S2O6 + 3O2 = K2Cr2O7 + 4KHSO4 + 5H2SO4