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JEE Main & Advanced Sample Paper JEE Main Sample Paper-41

  • question_answer
    Sometimes yellow turbidity appears while passing \[{{H}_{2}}S\] gas even in the absence of II group radicals. This is because of

    A)  sulphur is present in the mixture as impurity

    B)  IV group radicals are precipitated as sulphides

    C)  the oxidation of \[{{H}_{2}}S\]gas by some acid radicals

    D)  III group radicals are precipitated as hydroxides

    Correct Answer: C

    Solution :

    Turbidity is due to colloidal formed, as a result of the oxidation of \[{{H}_{2}}S\]by some oxidising agent (radicals) present in the mixture. \[{{H}_{2}}S+[O]\xrightarrow[{}]{{}}{{H}_{2}}O+S\]


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