Ammonia with excess of $Cl_2$ forms:

Which among the following oxoacids of phosphorus shows a tendency of disproportionation?

For $H_3PO_3$ and $H_3PO_4$,the correct choice is:

Which of the following is an ionic compound?

The nature of the two oxides of nitrogen,$X$ and $Y$,formed in the reaction of sodium nitrite $(NaNO_2)$ with hydrochloric acid $(HCl)$ is:

Which statement is wrong for $NO$?