WB JEE Medical WB JEE Medical Solved Paper-2013

  • question_answer
    Roasting of sulphides gives the gas X as a by-product. This is a colourless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic acts as. a reducing agent and its acid has never been insolated. The gas X is

    A)  \[{{H}_{2}}S\]

    B)  \[S{{O}_{2}}\]

    C)  \[C{{O}_{2}}\]

    D)  \[S{{O}_{3}}\]

    Correct Answer: B

    Solution :

     \[S{{O}_{2}}\]gas is obtained when any sulphide ore is roasted. \[2{{M}_{2}}S+3{{O}_{2}}\xrightarrow{{}}2{{M}_{2}}O+\underset{x}{\mathop{2S{{O}_{2}}}}\,\] This gas exhibits all the characteristics given in the question.


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