Red phosphorus is less reactive than yellow phosphorus because

Give physical and chemical properties of dinitrogen.

Which one of the following hydrides is least stable?

Assertion $:$ Reducing nature of pnicogen hydrides increases on moving down the group.
Reason $:$ Thermal stability of pnicogen hydrides decreases on moving down the group.

The number of oxygen atoms bonded to one phosphorus atom in $P_4O_6$ is

Which of the following compounds does not produce ammonia upon heating?