10th Class Science Chemical Reactions and Equations Question Bank Chemical Reactions and Equations

  • question_answer
    For the given reaction, match column I with column II and mark the correct option from the codes given below.
    \[F{{e}_{2}}{{O}_{3}}+xCO\to yFe+xC{{O}_{2}}\] 
     
    Column I          Column II
    (a) Oxidizing agent (i)   2
    (b) Reducing agent (ii) 3
    (c)\[x\]                (iii)\[F{{e}_{2}}{{O}_{3}}\]
    (d) y               (iv) CO
     

    A) (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)

    B) (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)

    C) (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)

    D) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

    Correct Answer: C

    Solution :

    Balanced chemical equation is \[F{{e}_{2}}{{O}_{3}}+3CO\xrightarrow{{}}2Fe+3C{{O}_{2}}\] Thus, \[x\] is 3 and y is 2.
    In this reaction, \[F{{e}_{2}}{{O}_{3}}\]loses oxygen so, it gets reduced and acts as an oxidizing agent while CO gains oxygen so, it gets oxidized and acts as a reducing agent.
     


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