KCI->CI2->Br2->HBr->CaBr2

Question

KCI->CI2->Br2->HBr->CaBr2

Answer 1

10KCl + 2KMnO4 + 8H2SO4 - > 5Cl2| + 6K2SO4 + 2MnSO4 + 8H2O
Cl2 + 2HBr - > 2HCl + Br2
Br2 + H2 -t(Pt)> 2HBr
2HBr + CaO - > CaBr2 + H2O