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,