Draw the structures of the following :
(a) `H_(2)SO_(5)`
(b) `H_(2)SO_(4)`
(c) `H_(2)S_(2)O_(7)`
(d) `H_(2)S_(2)O_(8)`
(e) `H_(2)SO_(3)`

Draw the structures of the following : H_(2)S_(2)O_(7)

Draw the structures of (i) H_(3)PO_(2) " " (ii) H_(2)SO_(5) " " (iii) H_(2)SO_(3) " " (iv) H_(2)SO_(4) " " (v) H_(2)S_(2)O_(7) .

Number of acids having central atom in +3 oxidation state among the following is (a) HNO_(2) (b) HNO_(3) (c) H_(3)PO_(2) (d) H_(3)PO_(3) (e) H_(3)PO_(4) (f) H_(4)P_(2)O_(5) (g) H_(4)P_(2)O_(7) (h) H_(2)SO_(3) (i) H_(2)S_(2)O_(7) (j) H_(2)S_(2)O_(8) (k) H_(2)SO_(4)

Out of H_(2)S_(2)O_(3),H_(2)S_(4)O_(6),H_(2)SO_(5) and H_(2)S_(2)O_(8) peroxy acids are:

H_(2)underline(S)O_(5)+H_(2)O to H_(2)SO_(4)+H_(2)O_(2)

underline(S)O_(2)+H_(2)O to H_(2)SO_(3)

H_(2)underline(S_(2))O_(8)+H_(2)O to H_(2)SO_(4)+H_(2)O_(2)

H_(4)underline(S_(2))O_(6)+H_(2)O to H_(2)SO_(3)+H_(2)SO_(4)

How many of these acids have S-S bonds? H_(2)S_(2)O_(3), H_(2)S_(2)O_(6), H_(2)S_(2)O_(7), H_(2)S_(2)O_(8), H_(2)SO_(5), H_(2)S_(n+2)O_(6) . (polythionic acid).