• # question_answer Which of the following is used in the preparation of chlorine [CBSE PMT 1999] A) $Only$$Mn{{O}_{2}}$ B) $OnlyKMn{{O}_{4}}$ C) Both $Mn{{O}_{2}}$ and $KMn{{O}_{4}}$ D) Either $Mn{{O}_{2}}$ or $KMn{{O}_{4}}$

$Mn{{O}_{2}}+4HCl\,\to \,MnC{{l}_{2}}+2{{H}_{2}}O+C{{l}_{2}}$ $2KMn{{O}_{4}}+3{{H}_{2}}S{{O}_{4}}+10HCl\,\to \,$${{K}_{2}}S{{O}_{4}}+2MnS{{O}_{4}}+8{{H}_{2}}O+5C{{l}_{2}}$