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  • Choose the balanced reaction for decomposition of azide with nitrite in presence of acid:Option: 1 <img alt="\mathrm{N}_3{ }^{-}+\mathrm{NO}_2^{-} \r

Choose the balanced reaction for decomposition of azide with nitrite in presence of acid:

Option: 1

\mathrm{N}_3{ }^{-}+\mathrm{NO}_2^{-} \rightarrow \mathrm{N}_2

 


Option: 2

2 \mathrm{~N}_3{ }^{-}+\mathrm{NO}_2{ }^{-}+\mathrm{H}^{+} \rightarrow \mathrm{N}_2+\mathrm{H}_2 \mathrm{O}+\mathrm{OH}^{-}


Option: 3

\mathrm{N}_3^{-}+\mathrm{H}^{+}+\mathrm{OH}^{-} \rightarrow \mathrm{N}_2+2 \mathrm{H}_2 \mathrm{O}
 


Option: 4

3 \mathrm{~N}^{-3}+\mathrm{NO}^{-2}+2 \mathrm{H}_2 \mathrm{O} \rightarrow 5 \mathrm{~N}_2+4 \mathrm{OH}^{-}


Answers (1)

The unbalanced reaction is: \mathrm{N}_3{ }^{-}+\mathrm{NO}_2{ }^{-} \rightarrow \mathrm{N}_2

Balancing the atoms: 3 \mathrm{~N}_3{ }^{-}+\mathrm{NO}_2{ }^{-} \rightarrow 5 \mathrm{~N}_2

Balancing the charges: 3 \mathrm{~N}^{-3}+\mathrm{NO}^{-2}+2 \mathrm{H}_2 \mathrm{O} \rightarrow 5 \mathrm{~N}_2+4 \mathrm{OH}^{-}

Hence option 4 is correct.

Posted by

Sumit Saini

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