Redox Reactions...

$$H_2SO_5 + H_2O \rightarrow H_2SO_4 + H_2O_2$$
Oxidation number of sulphur in $$H_2SO_5$$ in the above reaction is :

The difference in the oxidation numbers of the two types of sulphur atoms in $$Na_2S_4O_6$$ is :

In the following reaction:
$$Cr(OH)_3 + (OH)^- + {IO_3}^- \rightarrow {CrO_4}^{2-} + H_2O + I^-$$

What is the oxidation state of Mn in the compound $$K_2MnO_4$$?

Which among the following shows maximum oxidation state?

Oxidation number of carbon in "$$C_3O_2$$" and "$$Mg_2C_3$$" are respectively :

In the reaction $$2Na_2S_2O_3 + I_2 \rightarrow Na_2S_4O_6 + 2 NaI$$, the oxidation state of sulphur is :

The oxidation number and covalency of sulphur in the sulphur molecule ($$S_8$$) are, respectively :

The violent reaction between sodium and water is an example of :

Arrange the following in correct order with respect to oxidation state of S.
$$ SO_{3}^{2-}, S_2 O_{4}^{2-}$$ and $$S_2 O_{6}^{2-}$$