Group 15 elements

Phosphoproteins

________ are present in milk and eggs.

Phosphorus

________ occurs in minerals of the apatite family, which are the main components of phosphate rocks.

Nitrogen

________ is also present in the earths crust in the form nitrates.

Oxides

________ of nitrogen and phosphorus are acidic, Arsenic and Antimony are amphoteric, Bismuth is basic

oxidation state

The stability of +5 ________ decreases down the group and that of +3 oxidation state increases down the group.

NH3

________ is a mild reducing agent whereas BiH3 is a strong reducing agent.

Phosphorus

________ is an essential constituent of animal and plant matter.

Nitrogen

________ exists as a diatomic molecule with triple bond whereas P, As, Sb, Bi only form single bonds with themselves.

Nitrogen

________ is the most abundant element in the atmosphere.

Nitrogen

________ shows +1, +2, +4 and Phosphorus shows +1, +4.

Nitrogen

________ has the ability to form pπ- pπ bonds with itself and other elements like Carbon, Oxygen.

Nitrogen

________ has a maximum covalency of 4.

Stability order

NH3> PH3> AsH3> SbH3> BiH3

Basicity

NH3 > PH3 > AsH3 > SbH3 > BiH3

White phosphorus

_________ is a translucent white solid

Black phosphorus

________ has two forms α-black phosphorus and β-black phosphorus

PCl5

_________ exists as an ionic solid