JEE Main & Advanced Sample Paper JEE Main Sample Paper-43

  • question_answer
    The halogen oxide used for the estimation of carbon monoxide in automobile exhaust gases is

    A)  \[C{{l}_{2}}{{O}_{7}}\]               

    B)  \[{{l}_{2}}{{O}_{5}}\]

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

    D)  \[Br{{O}_{3}}\]

    Correct Answer: B

    Solution :

     \[\frac{\Delta n}{n}=\frac{{{v}_{s}}}{v-{{v}_{s}}}\] is used to estimate \[\frac{2.5}{100}=\frac{{{v}_{s}}}{320-{{v}_{s}}}=\frac{1}{40}\] in automobile exhaust gases as it oxidizes \[40{{v}_{s}}=320-{{v}_{s}}\] to \[{{v}_{s}}=\frac{320}{41}\simeq 8\,m/s\] quantitatively liberating iodine, which can be titrated with hypo.

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