What are "Ortho" or "Meta" oxyacids?

We know that only non metal of P-block formed oxy acids except some metals. The simple way to distinguish between ortho oxy acids and Meta oxy acid is that after removal of a water molecule from a parental oxy acid, remain an oxy acid obtained as product then parental oxy acid named with prefix "Ortho" and product named with a prefix "Para". For Naming as ortho acid, that acid should contain minimum three hydrogen atoms.

For Examples:

H₃BO₃ (√), H₂CO₃ (×), H₄SiO₄ (√), HNO₃ (×), H₃PO₃ (√), H₃PO₄ (√), H₂SO₄ (×), HCl₄ (×)

(×) Ortho prefix will not used.

(√) Ortho prefix will used.

Meta acids and their salts always exist in dimeric, trimeric, tetrameric or in polymeric form, not in monomeric form.

[The tendency of polymerisation is observed as SiO4 4- > PO4 3- > SO4 2- > ClO4 -]

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