Look at the diagram on the right side. Jar A contains are d-brown gas whereas Jar B contains a colourless gas. The two gas jars are separated by a glass plate placed between them

(a) What will happen when the glass plate between the two jars is pulled away?


(b) What name is given to the phenomenon which takes place?


(c) Name the brown gas which could be in jar A.


(d) Which is the colorless gas most likely to be present in jar B?


(e) Name one coloured solid and one colourless liquid which can show the same phenomenon.

(a) when the glass plate is pulled away between the two jars, the brown gas from jar A mix up with colourless gas in jar B. Red-brown gas is seen to slowly diffuse through the colourless gas in jar B. After sometime, Jar B becomes completely red brown in colour.

(b) The mixing of two gases in the above experiment is called Diffusion.


(c) The brown gas present in jar A could be Bromine vapours.


(d) The colourless gas in jar B could be air.


(e) Potassium permanganate (coloured solid) and Water (colourless liquid).


66