Question

Select the combination reactions between: (i) elements, (ii) compounds and (iii) an element and a compound, for the given reaction.

$$\begin{gathered} {\mathrm{N}}_2\left(\mathrm{g}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)\to 2\mathrm{NO}\left(\mathrm{g}\right) \\ \left(\mathrm{Nitrogen}\right)\left(\mathrm{Oxygen}\right)(\mathrm{Nitric}\mathrm{oxide}) \end{gathered}$$

Answer 1

Combination reaction:

The reactions involving the combination of elements or compounds to give new products are called combination reactions.

Elements and compounds:

Elements are the purest form of substances that constitutes only atoms. Compounds are composed of different atoms or elements and can be broken down into further simpler units.

Given equation:

The given reaction is a combination reaction of the elements Nitrogen $\left({\mathrm{N}}_2\right)$ and Oxygen $\left({\mathrm{O}}_2\right)$ forming Nitric oxide$\left(\mathrm{NO}\right)$.

$$\begin{gathered} {\mathrm{N}}_2\left(\mathrm{g}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)\to 2\mathrm{NO}\left(\mathrm{g}\right) \\ \left(\mathrm{Nitrogen}\right)\left(\mathrm{Oxygen}\right)(\mathrm{Nitric}\mathrm{oxide}) \end{gathered}$$

Therefore, the given reaction is the combination reaction of (i) elements.