The oxidation state of nitrogen in ${\mathrm{N}}_{\mathrm{2}}{\mathrm{O}}_{\mathrm{4}}$ is _____.

The nitrogen oxide$\left(\mathrm{s}\right)$ that contain$\left(\mathrm{s}\right)$ $\mathrm{N}-\mathrm{N}$ bond$\left(\mathrm{s}\right)$ is$/$are _____.

Atoms in a ${\mathrm{P}}_{\mathrm{4}}$ molecule of white phosphorus are arranged regularly in space in which of the following way?

Which of the following statement is INCORRECT?

Phosphine is prepared in the laboratory by the reaction of _____.

The reaction of ${\text{P}}_{\text{4}}\text{+ NaOH}$ involves the following:

Sulphuryl chloride $({\mathrm{SO}}_{\mathrm{2}}{\mathrm{Cl}}_{\mathrm{2}}\mathrm{)}$ reacts with white phosphorus $({\mathrm{P}}_{\mathrm{4}}\mathrm{)}$ to give _____.

Phosphine is $\mathrm{NOT}$ obtained by the reaction_____.

What may be expected to happen when phosphine gas is mixed with chlorine gas?