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Question

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)

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Solution

Sulphur dioxide is sparingly soluble in water, so it will slowly rise up the water level in the jar.
SO2(g)+H2O(l)ā†’H2SO3(aq)

Hence, the correct answer is option 2.

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