To Choose:The correct option.
Answer to Problem 39R
Correct option is B.
A polar solvent can dissolve a polar solute.
Explanation of Solution
Introduction:
“Like dissolves like” i.e. polar solutes do not dissolve in non-polar solvents, they are only dissolved in polar solvents. Similarly, non-polar solutes only dissolve in solvents which are non-polar in nature. This can be understood with the example of water as solvent and sugar and oil as solutes.
Since water is polar, so molecules of water attract other molecules of a polar solute such as sugar but not attract the molecules of a non-polar solute such as oil. This is the reason why sugar and ionic compounds, such as NaCl (table salt) are also highly soluble in water. Polar water molecules interact with the sodium and chloride ions.
Conclusion:
Thus, a polar solvent can dissolve a polar solute.
Chapter 21 Solutions
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
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