State your observation for the following cases:
(i) Moist blue litmus is introduced into a gas jar of sulphur dioxide.
(ii) Dry red rose petals are placed in the jar of sulphur dioxide.
(iii) Paper soaked in potassium permanganate solution is introduced into a gas jar of sulphur dioxide.

Q. Four gas jars filled with sulphur dioxide gas were inverted into troughs of water by four students and the following observations and inference were reported:

(a) Water did not enter the gas jar and sulphur dioxide is insoluble in water.
(b) A Small amount of water entered the gas jar slowly and sulphur dioxide is sparingly soluble in water.
(c) Water rushed into the gas jar and sulphur dioxide is highly soluble in water.
(d) Water did not enter the gas jar and sulphur dioxide is soluble in water.

The correct set of observations and inference drawn is reported in :
(1) (a)
(2) (b)
(3) (c)
(4) (d)

Q. Four gas jars filled with sulphur dioxide gas were inverted into troughs of water by four students $P,Q,R,S.$
The following observations and inference were reported by them. $P:$ Water did not enter the gas jar and sulphur dioxide is soluble in water.
$Q:$ Water rushed into the gas jar and sulphur dioxide is soluble in water.
$R:$ Water did not enter in the gas jar and sulphur dioxide is insoluble in water.
$S:$ A small amount of water entered the gas jar slowly and sulphur dioxide is sparingly soluble in water. Then the correct set of observations and inference is reported by,

Q.

What happens when :

(a) A lit splinter is introduced into a jar containing carbon dioxide?

(b) Moist blue litmus paper is placed in a jar containing carbon dioxide?

(c) Carbon dioxide is passed through lime water first in small amounts and the excess?

(d) A baking mixture containing baking powder is heated?

(e) A soda water bottle is opened?

Q. What happens when moist blue litmus paper is placed in a jar containing carbon dioxide?