Sulphuric acid, H2SO4 is an odorless, colorless, oily liquid that is extremely corrosive It was at first called Oil of Vitriol.
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It occurs in both combined and free state.
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It is framed close to the sulfide beds.
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In the joined frame, it happens as metallic sulfates (salts in minerals).

Fig. : A molecule of sulphuric acid

Fig. : Structure of sulfuric acid