JEE Main & Advanced Sample Paper JEE Main Sample Paper-26

  • question_answer
    Which of the following reactions are correctly given?
    (i) \[2NaN{{O}_{2}}+2FeS{{O}_{4}}+3{{H}_{2}}S{{O}_{4}}\]\[\xrightarrow{{}}\,\,\,\,\,F{{e}_{2}}{{(S{{O}_{4}})}_{3}}+2NaHS{{O}_{4}}+2{{H}_{2}}O\]
    (ii) \[2NO+N{{O}_{2}}\xrightarrow{250K}{{N}_{2}}{{O}_{4}}+1/2{{N}_{2}}\]
    (iii) 4\[4HN{{O}_{3}}+{{P}_{4}}{{O}_{10}}\xrightarrow{{}}4HP{{O}_{3}}+2{{N}_{2}}{{O}_{5}}\]
    (iv) \[Pb{{(N{{O}_{3}})}_{2}}\xrightarrow{673K}Pb\,\,{{(N{{O}_{2}})}_{2}}+{{O}_{2}}\]

    A)  (i) and (ii)                     

    B)  (i) and (ii)

    C)  (iii) and (iv)                  

    D)  (ii) and (iii) only

    Correct Answer: B

    Solution :

    (ii) and (iv) are not correct reaction(ii) \[NO+N{{O}_{2}}\xrightarrow{250K}\,{{N}_{2}}{{O}_{3}}\] (blue solid)

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