question_answer

The temperature of blast furnace to produce iron from its ore \[F{{e}_{2}}{{O}_{3}}\]varies from \[\text{500 }\!\!{}^\circ\!\!\text{ C}\]at the top of the furnace to about \[\text{1900 }\!\!{}^\circ\!\!\text{ C}\]at the bottom of the furnace. The reaction between the ore \[F{{e}_{2}}{{O}_{3}}\]and CO at the lowest temperature\[(-500{{\,}^{o}}C)\]is

A) \[3F{{e}_{2}}{{O}_{3}}+CO\to 2F{{e}_{3}}{{O}_{4}}+C{{O}_{2}}\]

B) \[F{{e}_{2}}{{O}_{3}}+CO\to 2FeO+C{{O}_{2}}\]

C) \[F{{e}_{2}}{{O}_{3}}+3CO\to 2Fe+3C{{O}_{2}}\]

D) \[F{{e}_{2}}{{O}_{3}}+CO\to 2Fe+C{{O}_{2}}+\frac{1}{2}{{O}_{2}}\]