Question

Choose acidic and neutral oxides from the following:

Carbon monoxide, Carbon dioxide, Nitrous oxide, Sulphur dioxide.

Answer 1

Acidic oxide- when reacted with water gives an acid

When Carbon dioxide reacts with water it produces Carbonic acid $\mathbf{\left(}{\mathbf{H}}_{\mathbf{2}}{\mathbf{CO}}_{\mathbf{3}}\mathbf{\right)}$

• $$\begin{gathered} {\mathbf{CO}}_{\mathbf{2}}\mathbf{}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{}\mathbf{+}\mathbf{}{\mathbf{H}}_{\mathbf{2}}\mathbf{O}\mathbf{}\mathbf{\left(}\mathbf{l}\mathbf{\right)}\mathbf{}\mathbf{\to }\mathbf{}\mathbf{}{\mathbf{H}}_{\mathbf{2}}{\mathbf{CO}}_{\mathbf{3}}\mathbf{}\mathbf{\left(}\mathbf{l}\mathbf{\right)} \\ \mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{Carbonic}\mathbf{}\mathbf{acid} \end{gathered}$$
• Carbon dioxide produces an acid while reacting with water and therefore are termed Acidic Oxide.

When Sulphur dioxide reacted with water it gives Sulphurous acid $\mathbf{\left(}{\mathbf{H}}_{\mathbf{2}}{\mathbf{SO}}_{\mathbf{3}\mathbf{}}\mathbf{\right)}$

• $$\begin{gathered} {\mathbf{SO}}_{\mathbf{2}}\mathbf{}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{}\mathbf{+}\mathbf{}{\mathbf{H}}_{\mathbf{2}}\mathbf{O}\mathbf{}\mathbf{\left(}\mathbf{l}\mathbf{\right)}\mathbf{}\mathbf{\to }\mathbf{}{\mathbf{H}}_{\mathbf{2}}{\mathbf{SO}}_{\mathbf{3}}\mathbf{}\mathbf{\left(}\mathbf{l}\mathbf{\right)} \\ \mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{}\mathbf{Sulphurous}\mathbf{}\mathbf{acid} \end{gathered}$$
• Sulphur dioxide produces an acid while reacting with water and therefore are termed Acidic Oxide.

Neutral oxide- it neither has acidic nor basic properties.

When Carbon monoxide reacts with water it produces Carbon dioxide and Hydrogen gas is released.

• $\mathbf{CO}\mathbf{}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{}\mathbf{+}\mathbf{}{\mathbf{H}}_{\mathbf{2}}\mathbf{O}\mathbf{}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{}\mathbf{\to }\mathbf{}{\mathbf{CO}}_{\mathbf{2}}\mathbf{}\mathbf{\left(}\mathbf{g}\mathbf{\right)}\mathbf{}\mathbf{+}\mathbf{}{\mathbf{H}}_{\mathbf{2}}\mathbf{}\mathbf{\left(}\mathbf{g}\mathbf{\right)}$
• Carbon monoxide $\mathbf{\left(}\mathbf{CO}\mathbf{\right)}$ is a neutral oxide as the products formed do not show either acidic or basic properties.

When Nitrous oxide$\mathbf{\left(}{\mathbf{N}}_{\mathbf{2}}\mathbf{O}\mathbf{\right)}$ reacts with water Ammonium Nitrate $\mathbf{\left(}{\mathbf{NH}}_{\mathbf{4}}{\mathbf{NO}}_{\mathbf{3}}\mathbf{\right)}$ a salt is produced again it does not show either acidic or basic properties.

• ${\mathbf{N}}_{\mathbf{2}}\mathbf{O}\mathbf{}\mathbf{\left(}\mathbf{l}\mathbf{\right)}\mathbf{}\mathbf{+}\mathbf{}\mathbf{2}{\mathbf{H}}_{\mathbf{2}}\mathbf{O}\mathbf{}\mathbf{\left(}\mathbf{l}\mathbf{\right)}\mathbf{}\mathbf{\to }\mathbf{}{\mathbf{NH}}_{\mathbf{4}}{\mathbf{NO}}_{\mathbf{3}}\mathbf{}\mathbf{\left(}\mathbf{aq}\mathbf{\right)}$
• Nitrous oxide (${\mathbf{N}}_{\mathbf{2}}\mathbf{O}$) is a neutral oxide as the products formed do not show either acidic or basic properties.