JEE Main & Advanced Chemistry Environmental Chemistry / पर्यावरणीय रसायन Question Bank Mock Test - Environmental Chemistry

  • question_answer
    Oxides of sulphur and nitrogen can be removed by scrubbing with

    A) \[Ca{{(OH)}_{2}}\]

    B) \[{{H}_{2}}S{{O}_{4}}\]

    C) Both [a] and [b]

    D) None of these

    Correct Answer: C

    Solution :

    [c] \[Ca{{(OH)}_{2}}+2N{{O}_{2}}\to Ca{{(N{{O}_{2}})}_{2}}+{{H}_{2}}O\]
    \[{{H}_{2}}O+O+N{{O}_{2}}\xrightarrow{{{H}_{2}}S{{O}_{4}}}HN{{O}_{3}}\](Oxidation)
    \[Ca{{(OH)}_{2}}+S{{O}_{2}}\to CaS{{O}_{3}}+{{H}_{2}}O\]
    \[S{{O}_{2}}+{{H}_{2}}O+O\xrightarrow{{{H}_{2}}S{{O}_{4}}}{{H}_{2}}S{{O}_{4}}\]


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