The redox reaction among the following is:

Formation of ozone from atmospheric oxygen in the presence of sunlight

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Reaction of

H_{2} S O_{4}

with

N a O H

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Combination of dinitrogen with dioxygen at 2000 K

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Reaction of

[C o (H_{2} O)_{6}] C l_{3}

with

A g N O_{3}

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Solution

The correct option is C Combination of dinitrogen with dioxygen at 2000 K
$N_{2} + O_{2} 200 K - -- \to 2 N O$ : The oxidation state of N changes from 0 to +2, and the oxidation state of O changes from 0 to -2.

In all the remaining reactions, there is no change in oxidation states of the elements participating in the reaction.

$3 O_{2} \to 2 O_{3}$

$2 N a O H + H_{2} S O_{4} \to N a_{2} S O_{4} + 2 H_{2} O (Neutralisation reaction)$

$3 A g N O_{3} + [C o (H_{2} O)_{6}] C l_{3} \to [C o (H_{2} O)_{6}] (N O_{3})_{3} + 3 A g C l (Double displacement)$

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Similar questions

H_{2} S O_{4}

H N O_{3}

H_{2} S O_{4}

C l_{2}

F e C l_{3}

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