Railways Sample Paper RRB (Group D) Sample Test Paper-1

  • question_answer
    Rust is-

    A)  A mixture of \[F{{e}_{2}}{{O}_{3}}\,\,and\,\,Fe{{(OH)}_{2}}\]

    B)  A mixture of \[FeO\,\,and\,\,Fe{{(OH)}_{2}}\]

    C)  \[FeO\]Only

    D)  A mixture of \[F{{e}_{2}}{{O}_{3}},\,\,3{{H}_{2}}O\,\,and\,\,FeO\]

    Correct Answer: D


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