Group 15 (Nitrogen Group) Elements

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.

Phosphorous trichloride is used as a precursor to phosphorous pentachloride.

Mention any two uses of phosphorous trichloride.

${\mathrm{P}}_4{\mathrm{O}}_6$ is formed when phosphorus reacts with limited supply of oxygen.

${\mathrm{P}}_2{\mathrm{O}}_5$ is formed when phosphorus reacts with limited supply of oxygen.

${\mathrm{P}}_4{\mathrm{O}}_6$ is formed when phosphorus reacts with _____ (excess/limited) supply of oxygen.

How does phosphorus react with oxygen?

Explain the behaviour of oxygen with phosphorus.

When lead(II) oxide reacts with ammonia, lead(II) oxide is being reduced to _____ (lead/lead oxide) and ammonia is being oxidized to nitrogen gas.

When lead(II) oxide reacts with ammonia, lead(II) oxide is being reduced to lead metal and ammonia is being oxidized to nitrogen oxide gas.

When lead(II) oxide reacts with ammonia, lead(II) oxide is being reduced to lead metal and ammonia is being oxidized to _____ (nitrogen/nitrogen oxide) gas.

When lead(II) oxide reacts with ammonia, lead(II) oxide is being reduced to lead metal and ammonia is being oxidized to nitrogen gas.

Give the reaction of lead(II) oxide and ammonia.

In the presence of catalyst, ammonia is oxidized to _____ (nitric oxide/ nitrogen dioxide) and oxygen is reduced to water.

In the presence of catalyst, ammonia is oxidized to nitric oxide.

Describe the reaction of ammonia with oxygen with catalyst.

Without catalyst, ammonia reacts with oxygen and produce nitrogen gas and water as products.

Describe the reaction of ammonia with oxygen without catalyst.

Give the reaction of ammonia $\left({\mathrm{NH}}_3\right)$ with ${\mathrm{FeCl}}_3$.

Iron(III) chloride $\left({\mathrm{FeCl}}_3\right)$ react with ammonia $\left({\mathrm{NH}}_3\right)$ and water to produce iron(III) hydroxide $\left(\mathrm{Fe}{\left(\mathrm{OH}\right)}_3\right)$ and ammonium chloride $\left({\mathrm{NH}}_4\mathrm{Cl}\right)$.