Compounds of Phosphorus

State which of the following statements are true:

(i) Nitrogen is more reactive than phosphorus  $\left({\mathrm{P}}_4\right)$

(ii) All the bonds in  ${\mathrm{PCl}}_5$  are of equal length.

The number of $\mathrm{P}-\mathrm{O}-\mathrm{P}$ bonds in ${\mathrm{H}}_4{\mathrm{P}}_2{\mathrm{O}}_7, {\left({\mathrm{HPO}}_3\right)}_3$, and ${\mathrm{P}}_4{\mathrm{O}}_{10}$ are respectively

One mole of ${\mathrm{P}}_4$ reacts with $8$ moles of ${\mathrm{SOCl}}_2$ to give $4$ moles of $\mathrm{A}$, $\mathrm{x}$ mole of ${\mathrm{SO}}_2$ and $2$ moles of $\mathrm{B}$. $\mathrm{A}, \mathrm{B}$ and $\mathrm{x}$ respectively are

What is the ratio of $\mathrm{\sigma } \mathrm{and} \mathrm{pi}$ bonds in pyrophosphoric acid?

The strong reducing property of hypophosphorous acid is due to

The strongest reducing agent among the given options is

In solid ${\mathrm{PI}}_5$, how many $\mathrm{P}-\mathrm{I}$ bonds are present in the cation?

The number of $\mathrm{P}-\mathrm{O}-\mathrm{P}$ bonds in the structure of phosphorus pentoxide and phosphorus trioxide are respectively.

For ${\mathrm{H}}_3{\mathrm{PO}}_3$ and ${\mathrm{H}}_3{\mathrm{PO}}_4$, the correct choice is

Write the reaction of ${\mathrm{PCl}}_3$ with phosphonic acid.

Phosphorous trichloride is used as a precursor to phosphorous pentachloride.

Mention any two uses of phosphorous trichloride.

Among oxoacids of phosphorus, the best reducing agent is

Phosphorous forms different oxyacids such as, hypophosphorous acid $\left({\mathrm{H}}_3{\mathrm{PO}}_2\right)$, orthophosphorous acid $\left({\mathrm{H}}_3{\mathrm{PO}}_3\right)$ and orthophosphoric acid $\left({\mathrm{H}}_3{\mathrm{PO}}_4\right)$. Orthophosphorous acid on heating forms orthophosphoric acid, which on heating first forms pyrophosphoric acid $\left({\mathrm{H}}_4{\mathrm{P}}_2{\mathrm{O}}_7\right)$ and on further heating forms polyphosphoric acid. The correct statement is.

Which of the following is CORRECT?

The chemical which is NOT involved in Holme's signal is

Select the incorrect statement about the oxyacids of phosphorus.

The hybridisation state of phosphorus atom in ${\mathrm{PCl}}_5$ is

The chemical formula of the compound that contains one $\mathrm{P}-\mathrm{OH},$ two $\mathrm{P}-\mathrm{H}$ and One $\mathrm{P}=\mathrm{O}$ bond in its one molecule is

The correct order of acidic strength is