Question

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

$$\begin{gathered} \mathrm{Fe}\left(\mathrm{s}\right)+\mathrm{S}\left(\mathrm{s}\right)\to \mathrm{FeS}\left(\mathrm{s}\right) \\ \left(\mathrm{Iron}\right)\left(\mathrm{Sulphur}\right)(\mathrm{Iron}\mathrm{sulphide}) \end{gathered}$$

Answer 1

Combination reactions:

The reactions in which a combination of elements or compounds occurs to give products are termed combination reactions.

Elements:

The elements are the cloud of atoms and are pure in nature. They cannot be broken down through reactions.

Compounds:

The compounds are composed of more than one atom or element. They can be broken down into simpler ones. There can be combination of reactions between both elements and compounds.

Given reaction:

The given reaction is a combination reaction of two elements, Iron (Fe) and Sulphur (S), to give Iron sulphide (FeS).

$$\begin{gathered} \mathrm{Fe}\left(\mathrm{s}\right)+\mathrm{S}\left(\mathrm{s}\right)\to \mathrm{FeS}\left(\mathrm{s}\right) \\ \left(\mathrm{Iron}\right)\left(\mathrm{Sulphur}\right)(\mathrm{Iron}\mathrm{sulphide}) \end{gathered}$$

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