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(a)
Interpretation: The compound that is likely to be more soluble in 
among the given pair is to be predicted.
Concept introduction: The polarity of solute and solvent determines the solubility solution. Solute and solvent of same polarity are soluble with each other and insoluble if polarity is different.
To determine: The compound that is likely to be more soluble in among the given pair.
(a)
Answer to Problem 10.42QP
Solution
The solubility of 
in is more than that of 
.
Explanation of Solution
Explanation
The dipole moment of the given compound is important for its solubility in . The dipole moment of is zero and it solubilizes only non-polar compounds.
is a non-polar compound whereas is a polar compound. Therefore, is more soluble in than .
(b)
To determine: The compound that is likely to be more soluble in among the given pair.
(b)
Answer to Problem 10.42QP
Solution
The solubility of 
in is more than that of 
.
Explanation of Solution
Explanation
The polarity of ethanol in comparison to acetone is more because in ethanol, oxygen is attached to one carbon atom, whereas in acetone it lies between two carbon atoms and they cancel out each other.
Therefore, acetone being less polar solubilizes more in than ethanol.
(c)
To determine: The compound that is likely to be more soluble in among the given pair.
(c)
Answer to Problem 10.42QP
Solution
The solubility of 
in is more than that of 
.
Explanation of Solution
Explanation
The given compound is ionic compound and is a non-ionic compound.
Ionic compounds are polar in nature and solubilize in polar solvent.
Therefore, being non-polar compound solubilizes more in than .
(d)
To determine: The compound that is likely to be more soluble in among the given pair.
(d)
Answer to Problem 10.42QP
Solution
The solubility of 
in is more than that of 
.
Explanation of Solution
Explanation
The given compounds are and . Iodine is non-polar compound as its dipole moment is zero whereas is ionic molecule and polar in nature. Therefore, being non-polar compound solubilizes more in than .
Conclusion
- a. The solubility of in is more than that of .
- b. The solubility of in is more than that of .
- c. The solubility of in is more than that of .
- d. The solubility of in is more than that of .
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