Classify the following into acid base and amphiprotic species on the basis of protonic concept :
`H_(2)PO_(2)^(-) (ii) H_(2)PO_(3)^(-),(III) H_(2)PO_(4)^(-),(iv) HPO_(3)^(2-),(v)HPO_(4)^(2-)(vi)NH_(4)^(+)`
`(vii)CH_(3)COOH_(2)^(+)`

Which of the following consitute a set of amphoteric species? (a). H_(2)O,H_(2)PO_(3)^(Theta), HPO_(4)^(2-) (b). HC_(2)O_(4)^(Theta),H_(2)PO_(4)^(Theta),SO_(4)^(2-) (c). H_(2)O,HPO_(4)^(2-),H_(2)PO_(2)^(Theta) (d). H_(3)O^(o+),H_(2)PO_(4)^(Theta),HCO_(3)^(Theta)

H_(4)underline(P_(2))O_(6)+H_(2)O to H_(3)PO_(3)+H_(3)PO_(4)

H_(4)underline(P_(2))O_(6)+H_(2)O to H_(3)PO_(3)+H_(3)PO_(4)

How many of the following compounds have sp^(3) hybridisation (i) SO_(4)^(2-) (ii) SO_(5)^(2-) (iii) PO_(4)^(3-) (iv) PO_(5)^(3-) (v) I_(3)^(Theta) (iv) CO_(3)^(2-) (vii) CO_(4)^(2-) .

For H_(3)PO_(4) , H_(3)PO_(4) rarr H_(2)PO_(4)^(-)+H^(+)(K_(1)), H_(2)PO_(4)^- rarr HPO_(4)^(-)+H^(+) (K_2), HPO_(4)^(2-) rarr PO_(4)^(3-) + H^(+) (K_(3)) then

Find the total number of diprotic acids among the following: H_(3)PO_(4), H_(2)SO_(4), H_(3)PO_(3)

The total number of diprotic acids among the following is H_(3)PO_(4), H_(2)SO_(4), H_(3)PO_(3) H_(2)CO_(3), H_(2)S_(2)O_(7), H_(3)BO_(3) H_(3)PO_(2), H_(2)CrO_(4), H_(2)SO_(3)

Given the following K_(a) values, determine which species is the strongest base ? HSO_(4)^(-)=1.2xx10^(-2),H_(2)PO_(4)^(-)=6.3xx10^(-8),HCO_(3)^(-)=4.7xx10^(-11) (a) CO_(3)^(2-) (b) H_(2)SO_(4) (c) SO_(4)^(2-) (d) HPO_(4)^(2-)

Drawn the structure of the following: (i) H_(3)PO_(2) (ii) XeF_(4)

The oxo-acids of P_(2)O_(5) is H_(3)PO_(4)