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JEE Main & Advanced Chemistry Organic Chemistry: Some Basic Principles & Techniques / कार्बनिक रसायन : कुछ मूलभूत सिद्धांत एवं तकन Question Bank Mock Test - General Principles Processes of Isolation of Elements

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

    A) \[S{{O}_{2}}\] 

    B) \[C{{O}_{2}}\]

    C) \[S{{O}_{3}}\]             

    D) \[{{H}_{2}}S\]

    Correct Answer: A

    Solution :

    [a] Sulphides\[\xrightarrow{Roasting}S{{O}_{2}}\] \[S{{O}_{2}}\] is a colorless gas with choking smell. \[S{{O}_{2}}+{{H}_{2}}O\to \underset{Acid}{\mathop{{{H}_{2}}S{{O}_{3}}}}\,\] \[{{H}_{2}}S{{O}_{3}}\] is a reducing agent.


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