The oxidation number of $N$ in ${N_2}H_5^+$ is:

In the following reaction,assign the state for the underlined atom for the product of complete hydrolysis at $R.T.$:
$\underline{Cl}F + H_2O \longrightarrow HOCl + HF$

Oxidation numbers of $P$ in $PO_4^{3-}$,$S$ in $SO_4^{2-}$ and that of $Cr$ in $Cr_2O_7^{2-}$ are respectively

In the chromyl chloride test,the oxidation state of $Cr$ changes from:

Chlorine is in $+1$ oxidation state in

Calculate the oxidation number of $C$ in glucose $(C_{6}H_{12}O_{6})$.