PROPERTIES OF SULPHURIC ACID
 
STRUCTURE OF
SULPHURIC ACID
 
LABORATORY
GRADE H2SO4
 
    Laboratory grade sulphuric acid is 98% pure and its density is 1.839 gm/cc. It is used in chemical     analysis in laboratories.
FUMING SULPHURIC ACID
 
    Sulphuric acid containing 20% SO3 dissolved in it with density 1.929 gm/cc is called fuming sulphuric     acid.
PHYSICAL PROPERTIES
OF H2SO4
 
     It is a colourless, odourless, viscous oily liquid.
     Melting point of H2SO4 is 10.5oC.
     Boiling point is 290oC.
     It is hygroscopic and corrosive in nature.
     Soluble in water.
     It causes severe burns on skin.
     It can destroy fabrics, paper.
USES OF H2SO4
 
     It is a very widely used reagent.
     In the manufacture of fertilizers, dyes, drugs, paints, explosives.
     Petroleum industry, storage batteries.
     Cotton industry, paper industry, silk industry, detergents.
     Stain remover, pickling of steel.
     Dehydrating agent.
     Laboratory agent.

    Q: H2SO4 has high boiling point and high viscosity. Explain.

    A: In H2SO4, hydrogen bond is present. Presence of H-bond in H2SO4 produces greater attraction     among the molecules and H2SO4 molecules form long chains by H-bonding. Due to greater forces of     attraction H2SO4 is viscous and has high boiling point.
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