Which of the following exists as inert gas at room temperature?
Bromine
Iodine
Nitrogen
Phosphorus
Nitrogen exists as diatomic molecule and phosphorus as P4. Why?
The non-metal which exists in the liquid state at room temperature is :
(a) fluorine
(b) chlorine
(c) bromine
(d) iodine
Which of the following exists as a non-reactive gas at room temperature?