Statement I : When salt dissolves in water, ΔS for the process is positive. Statement II : Aqueous ions have a greater entropy than ions in a solid.
A
Statement 1 and Statement 2 are correct and Statement 2 is the correct explanation of Statement 1 .
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B
Both the Statement 1 and Statement 2 are correct and Statement 2 is not the correct explanation of Statement 1.
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C
Statement 1 is correct but Statement 2 is not correct.
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D
Statement 1 is not correct but Statement 2 is correct.
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E
Both the Statement 1 and Statement 2 are not correct.
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Solution
The correct option is A Statement 1 and Statement 2 are correct and Statement 2 is the correct explanation of Statement 1 . The entropies of gases are much larger than those of liquids, which are larger than those of solids. When salt dissolves in water, ΔSΔS for the process is positive because salt transfer from solid phase to liquid phase,which have higher entropy.
Aqueous ions have a greater entropy than ions in a solid,this statement is also true and also correct explanation of statement 1.