Cr2O3-CrCL3-Cr(OH)3-Cr2O3
1) Cr2O3+6HCl= 2CrCL3+3H2O
2) CrCL3+3 NaOH= Cr(OH)3 + 3 NaCl
3) 2Cr(OH)3=Cr2O3+3H2O
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Cr2O3-CrCL3-Cr(OH)3-Cr2O3
1) Cr2O3+6HCl= 2CrCL3+3H2O
2) CrCL3+3 NaOH= Cr(OH)3 + 3 NaCl
3) 2Cr(OH)3=Cr2O3+3H2O