The oxidation number of carbon in $CH_3Cl$ is:

Which one has the maximum oxidation number of phosphorus?

$A$ compound contains $x$,$y$,and $z$ atoms. The oxidation number of $x$ is $+3$,$y$ is $-5$,and $z$ is $+1$. The possible formula of the compound is:

What is the change in oxidation number of selenium in the following redox reaction?
$SeO_{3(aq)}^{2-} + Cl_{2(g)} + 2OH^- \longrightarrow SeO_{4(aq)}^{2-} + 2Cl_{(aq)}^- + H_2O$

In which of the following compounds is the oxidation number of carbon maximum?

The equivalent weight of potassium permanganate in an alkaline medium is........