List four chemical properties of hydrogen gas.
Hydrogen:
Chemical properties of hydrogen:
Hydrogen is quite reactive gas and its reactions are as follows:
(a) Reaction with Oxygen:
Hydrogen reacts with oxygen to form water or steam and this reaction is highly exothermic in nature so hydrogen burns with a pop sound.
For example, the reaction is as
(b) Reaction with Halogens:
Hydrogen reacts with halogens (Chlorine, Bromine, Iodine) to give hydrogen halides which are acidic in nature.
For example, the reaction is as:
(c) Reaction with Metals:
Hydrogen reacts with some metals to form their respective hydrides.
For example, the reaction is as:
(d) Reaction with Sulfur:
Hydrogen reacts with Sulfur to form hydrogen sulfide gas which smells like rotten eggs.
For example, the reaction is as: