Answer:
Acids: Acids are formed when non-metals react with oxygen and form non-metallic oxides. These oxides when dissolved in water, form acids. e.g., \[\begin{align} & \,\,\,\,\,\,\,S\,\,\,\,\,\,\,\,+\,\,\,\,\,\,\,{{O}_{2}}\,\,\,\,\,\,\,\to \,\,\,\,\,\,\,\,\,\,\,S{{O}_{2}} \\ & Sulphur\,\,\,Oxygen\,\,\,\,\,\,\,Sulphur\,dioxide\, \\ \end{align}\] \[\begin{align} & \,\,\,\,\,\,\,\,\,\,\,\,\,S{{O}_{2\,\,}}\,\,\,\,\,\,\,\,\,\,\,\,\,+\,\,\,{{H}_{2}}O\,\,\,\to \,\,\,\,\,\,\,\,\,{{H}_{2}}S{{O}_{3}} \\ & Sulphure\,dioxide\,\,\,\,Water\,\,\,\,\,\,\,Sulphirous\,acid \\ \end{align}\] Bases: Bases are formed when metals react with oxygen and form metallic oxides. These oxides when dissolved in water, form bases. e.g. \[\begin{align} & \,\,\,\,2Na\,\,\,\,+\,\,\,\,\,\,\,{{O}_{2}}\,\,\,\,\,\,\to \,\,\,\,\,\,\,\,\,\,\,N{{a}_{2}}O \\ & Sodium\,\,\,\,Oxygen\,\,\,\,\,\,\,Sodium\,\,oxide \\ \end{align}\] \[\begin{align} & \,\,\,\,\,\,N{{a}_{2}}O\,\,\,\,\,\,\,\,\,\,\,+\,\,\,{{H}_{2}}O\,\,\to \,\,\,\,\,\,\,\,\,\,2NaOH \\ & Sodium\,oxide\,\,\,\,Water\,\,\,\,\,\,Sodiumhydroxide \\ \end{align}\]
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