Step-by-step explanation:
Acids are the species which furnish protons (hydrogen ions) when dissolved in the water.
Bases are the species which furnish hydroxide ions when dissolved in the water.
Oxoacid is the acid which contains with at least one hydrogen atom which is bonded to the oxygen atom in the molecule which can dissociate in the solution to give proton and the corresponding anion.
Oxoanion is the anion which is derived from oxoacid by the loss of hydrogen atom which is bounded to the oxygen.
A hydrate is the specie which contains water molecule or it's constituents in its solid structure.