Question

The following reaction is an example of a `4"NH"_3("g") + "SO"_2 -> 4"NO"("g") + 6"H"_2"O"("g")`

1. displacement reaction
2. combination reaction
3.  redox reaction
4. neutralisation reaction

Options

• (i) and (iv)

•  (ii) and (iii)

• (i) and (iii)

•  (iii) and (iv)

Answer 1

(i) and (iii)

Explanation - 

In the following reaction, `4"NH"_3("g") + "SO"_2 -> 4"NO"("g") + 6"H"_2"O"("g")`

Hydrogen is getting displaced from NH₃ by O₂ to form NO hence, this is an example of a displacement reaction. At the same time, the addition of oxygen to a compound is called oxidation So, NH₃ is getting oxidised to NO. Addition of hydrogen to a compound is called reduction so, O₂ is reduced to H₂O. Since both, the process of oxidation and reduction are happening at the same time this reaction is also an example of a redox reaction.