(D) The oxidation state of copper in the given ores is as follows:$1$. Azurite: $Cu_3(CO_3)_2(OH)_2$ (Copper is in $ +2 $ state)$2$. Chalcopyrite: $Cu

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(D) The oxidation state of copper in the given ores is as follows:$1$. Azurite: $Cu_3(CO_3)_2(OH)_2$ (Copper is in $ +2 $ state)$2$. Chalcopyrite: $CuFeS_2$ (Copper is in $ +2 $ state)$3$. Malachite: $CuCO_3 \cdot Cu(OH)_2$ (Copper is in $ +2 $ state)$4$. Cuprite: $Cu_2O$ (Copper is in $ +1 $ state)Therefore,the correct option is $D$.