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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