Question

An element L consists of molecules.

1. What type of bonding is present in the particles that make up L?
2. When L is heated with iron metal, it forms a compound FeL. What chemical term would you use to describe the change undergone by L?

Answer 1

1. Covalent bonding

L consist of molecules of same type. So chemical bond formed between same type of molecules is covalent bonding.

b. Reduction

When L is heated with iron metal it forms FeL. Here oxidation of Fe and reduction of L occurs.

$$\begin{gathered} \mathrm{Fe}\to {\mathrm{Fe}}^{2+}+2{\mathrm{e}}^{-}\left(\mathrm{Oxidation}\right) \\ \mathrm{L}+2{\mathrm{e}}^{-}\to {\mathrm{L}}^{2-}\left(\mathrm{reduction}\right) \\ {\mathrm{Fe}}^{2+}+{\mathrm{L}}^{2-}\to \mathrm{FeL} \end{gathered}$$