Brown vapours can be of

Water vapours can be adsorbed and absorbed respectively by

Water vapours can be adsorbed and absorbed respectibely by

Give reasons for the following: Red brown vapours are produced when concentrated sulphuric acid is added to potassium bromide

A mixture when heated with dil H_(2)SO_(4) does not evolve brown vapours but when heated with conc H_(2)SO_(4) , brown vapours are obtained. with AgNO_(3) soin do not give any precipitate .The mixture contain

A mixture when heated with dil. H_2SO_4 does not evolve brown vapours but when heated with conc. H_2SO_4 brown vapours are obtained. The vapours when brought in contact with aqueous AgNO_3 solution do not give any precipitate. The mixture contains :

When a gas jar full of air is placed upside down on a gas jar full of bromine vapours, the red-brown vapours of bromine from the lower jar go upward into the jar containing air. In this experiment :