Redox Reactions...

Statement: The oxidation number of carbon in $$NaCNS$$ is $$+4$$

Corrosion of iron is :

what is the Oxidation number of $$Fe$$ in $$\left[ Fe{ \left( { H }_{ 2 }O \right) }_{ 5 }NO \right]^{2+} $$ due to charge transfer from $$NO$$ to $${ Fe }^{ 2+ }$$.

The sum of oxidation number of all the atoms in a neutral molecule must be zero.

Perxenate $$(XeO^{4-}_6$$) and perchromate ($$CrO_5$$) both have peroxide bonds.

Oxidation number of iron in brown ring complex (obtained in ring-test of $${ NO }_{ 3 }^{ - }$$) is ?
Brown ring complex: $${ \left[ Fe{ \left( { H }_{ 2 }O \right)  }_{ 5 }NO \right]  }^{ 2+ }$$

The oxidation number of Ni in $$Ni(CO)_4$$ is $$+2$$.

What is the sum of oxidation number of various elements in $$HC{O}_{3}^{\ominus}$$ (bicarbonate) ion?

The half cell involving the reaction $$Cr_2O_7^{2-} (aq) + 14 H^+ (aq) + 6e   \rightarrow 2Cr^{3+} (aq) + 7H_2O$$ can be represented as :

The lowest possible oxidation state of nitrogen is $$-3$$ as in $$N^{3-}$$.