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Question

Which of the followings is not a intramolecular redox reaction?


A
NH4NO2N2+2H2O
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B
NH4NO3N2O+2H2O
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C
2KClO32KCl+3O2
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D
2H2O22H2O+O2
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Solution

The correct option is D $$ 2H_2O_2 \rightarrow 2H_2O + O_2$$
Intramolecular redox reactions are the reactions in which one element of a compound is oxidised while the other is reduced.
Disproportionation is a specific type of redox reaction in which a species is simultaneously reduced and oxidised to form two different products.
$$H_2O_2\rightarrow H_2O+O_2$$
     -1              -2        0
It is a disproportionation reaction and not intramolecular redox reaction .
$$NH_4NO_2 \rightarrow N_2 + 2H_2O$$
-3     +3            0
$$ NH_4NO_3\rightarrow N_2O + 2H_2O$$
 -3     +5              +1
$$ 2KClO_3 \rightarrow 2KCl + 3O_2$$
      +5                  -1          0
All these three are intramolecular redox reaction.

Chemistry

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