How many of the following oxoacids of sulphur has S-S bond? `H_(2)S_(2)O_(4)`,`H_(2)S_(2)O_(5)`,`H_(2)S_(2)O_(7)`,`H_(2)S_(2)O_(6)`

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).

Number of S-S bond is H_(2)S_(n)O_(6) :

Number of S-S bond in H_(2)S_(n)O_(6) is :

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

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

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

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

The oxidation number of sulphur in H_(2)S_(2)O_(8) is:

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

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