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J & K CET Medical J & K - CET Medical Solved Paper-2008

  • question_answer
    In the laboratory\[{{H}_{2}}S\]gas is prepared by using black lumps and dil.\[{{H}_{2}}S{{O}_{4}}\]The black lumps are

    A) \[FeS{{O}_{4}}\]                              

    B)  \[Mn{{O}_{2}}\]

    C)  \[FeS\]                               

    D) \[FeS{{O}_{3}}\]

    Correct Answer: C

    Solution :

                    In laboratory,\[{{H}_{2}}S\]is prepared by treating ferrous sulphide (black lumps) with dil\[{{H}_{2}}S{{O}_{4}}\]. \[FeS+{{H}_{2}}S{{O}_{4}}\xrightarrow[{}]{{}}FeS{{O}_{4}}+{{H}_{2}}S\]


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