Redox Reactions...

The correct statement for the molecule $$ CsI_{3}$$ is that:

Excess of KI reacts with $$CuSO_4$$ solution and then $$Na_2S_2O_3$$ solution is added to it. Which of the statement is incorrect for this reaction?

The pair of compounds having metals in their highest oxidation state is:

Consider a titration of potassium dichromate solution with acidified Mohr's salt solution using diphenylamine as indicator. The number of moles of Mohr's salt required per mole of dichromate is:

The pair of compounds having metals in their highest oxidation state is:

Which ordering of compounds is according to the decreasing order of the oxidation state of nitrogen?

$$(\mathrm{N}\mathrm{H}_{4})_{2}\mathrm{C}\mathrm{r}_{2}\mathrm{O}_{7}$$ on heating gives a gas which is also given by:

For the redox reaction, $$MnO_{4}^{-} + C_{2}O_{4}^{2-} + H^{+}\rightarrow Mn^{2+} + CO_{2} + H_{2}O$$,  the correct coefficients of the reactants for the balanced equation are _____________.

Identify Z in the reaction given below:

The oxidation number of N and $$\displaystyle Cl$$ in $$\displaystyle NOCl{ O }_{ 4 }$$ respectively are :