JEE Main & Advanced JEE Main Paper Phase-I (Held on 07-1-2020 Evening)

  • question_answer
    The redox reaction among the following is:                  [JEE MAIN Held on 07-01-2020 Evening]

    A) Reaction of \[[Co{{({{H}_{2}}O)}_{6}}]C{{l}_{3}}\]with \[AgN{{O}_{3}}\]

    B) Formation of ozone from atmospheric oxygen in the presence of sunlight.

    C) Combination of dinitrogen with dioxygen at 2000 K

    D) Reaction of \[{{H}_{2}}S{{O}_{4}}\]with NaOH

    Correct Answer: C

    Solution :

    [c] The redox reaction is \[{{N}_{2}}+{{O}_{2}}\,2NO\] Nitrogen is oxidised while oxygen is reduced. Reaction of \[[Co{{({{H}_{2}}O)}_{6}}]C{{l}_{3}}\] with \[AgN{{O}_{3}}\] is not redox reaction. It is a precipitation reaction.

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