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Report Abuse. Acidic Gases are those gases, which when dissolved in water, show acidic properties. CO2 when dissolved gives H2CO3, which is acidic, NO2 gives HNO3(Nitric Acid). SO2 gives Sulphurous Acid, SO3 gives Sulphuric Acid. There are plenty of such examples.
Nitric acid is a highly acidic substance and a strong oxidizing agent. Its physical state is a colorless or slightly yellowish liquid. The chemical formula of nitric acid is HNO3, and it is made up of one hydrogen atom, one nitrogen atom, and three oxygen atoms. Its chemical structure indicates that it is a planar molecule, and it has two resonance forms. Nitric acid is most commonly used in the production of fertilizer.