BCECE Engineering BCECE Engineering Solved Paper-2013

  • question_answer
    In an atmosphere with industrial smog, copper corrodes to
    (i)\[C{{u}_{2}}{{(OH)}_{2}}S{{O}_{4}}\]
    (ii) \[C{{u}_{2}}{{(OH)}_{2}}C{{O}_{3}}\]
    (iii) \[CuS{{O}_{4}}\]
    (iv) \[CuC{{O}_{3}}\]

    A) I and III                

    B)        II and IV              

    C)        I and IV

    D)        l and II

    Correct Answer: D

    Solution :

    \[2Cu+{{H}_{2}}O+S{{O}_{3}}+{{O}_{2}}\to \] \[C{{u}_{2}}{{(OH)}_{2}}S{{O}_{4}}\] \[2C{{u}_{2}}+{{H}_{2}}O+C{{O}_{2}}+{{O}_{2}}\xrightarrow{{}}\] \[C{{u}_{2}}{{(OH)}_{2}}C{{O}_{3}}\]


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