$\begin{align}
& (1)\,C{{l}_{2}}+2K\to 2KCl \\
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(A) \\
& (2)\,2KCl+2{{H}_{2}}O\xrightarrow[c.m.n]{dpdd}2KOH+C{{l}_{2}}+{{H}_{2}} \\
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(B) \\
& (3)\,KOH+C{{O}_{2}}\to KHC{{O}_{3}} \\
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(C) \\
& (4)\,2KHC{{O}_{3}}\xrightarrow{t{}^\circ }{{K}_{2}}C{{O}_{3}}+C{{O}_{2}}+{{H}_{2}}O \\
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(D) \\
& (5)\,{{K}_{2}}C{{O}_{3}}+2HCl\to 2KCl+C{{O}_{2}}+{{H}_{2}}O \\
& (6)\,{{K}_{2}}C{{O}_{3}}+\,{{H}_{2}}S{{O}_{4}}\to {{K}_{2}}S{{O}_{4}}+C{{O}_{2}}+{{H}_{2}}O \\
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(E) \\
& (7)2\,KOH+\,{{H}_{2}}S{{O}_{4}}\to {{K}_{2}}S{{O}_{4}}+2{{H}_{2}}O \\
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(E) \\
& (8)\,{{K}_{2}}S{{O}_{4}}+BaS\to BaS{{O}_{4}}\downarrow +{{K}_{2}}S \\
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(F) \\
& (9)\,{{K}_{2}}S+CuC{{l}_{2}}\to CuS\downarrow +2KCl \\
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(E) \\
\end{align}$