AIIMS AIIMS Solved Paper-2014

  • question_answer
    The stoichiometry of the following reaction is \[{{K}_{2}}{{S}_{2}}{{O}_{8}}(\alpha q)+2KI(\alpha q)\xrightarrow[{}]{{}}\] \[2{{K}_{2}}S{{O}_{4}}(\alpha q)+{{I}_{2}}(\alpha q)\]

    A) \[2:1\]                                  

    B) \[\text{1}:2\]

    C) \[2:2\]                                  

    D) \[1:3\]

    Correct Answer: B

    Solution :

    \[{{K}_{2}}{{S}_{2}}{{O}_{8}}(aq)+2Kl(aq)\xrightarrow{{}}2{{K}_{2}}S{{O}_{4}}(aq)+{{l}_{2}}(aq)\]In this reaction, one mole of \[{{K}_{2}}{{S}_{2}}{{O}_{8}}\] reacts with 2 moles of\[Kl\]. hence the stoichiometry of this reaction is\[1:2\].


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