$(I)\, [Ma_3b_2c]^{n \pm}\,\,\, (II)\, [M(AB)_3]^{n \pm}\,\,\, (III)\, [Ma_2b_2c_2]^{n \pm}$
$(I)\,\,\,-\,\,\,(II)\,\,\,-\,\,\,(III)$
| ઉદીપક | પ્રક્રિયા |
| $(A)$ $TiCl_4$ | $(i)$ Wacker process |
| $(B)$ $PdCl_2$ | $(ii)$ Ziegler - Natta polymerization |
| $(C)$ $CuCl_2$ | $(iii)$ Contact process |
| $(D)$ $V_2O_5$ | $(iv)$ Deacon's process |