Chapter 21, Problem 38R

To determine

The type of substances- Paint, thinner and gasoline which evaporates more readily is to be determined

Answer to Problem 38R

B

Explanation of Solution

Paint, thinner is oil based and non polar in nature so its particles are not charged and are not dissolved in water. Gasoline is also a complex mixture of non polar compound such as chain of hydrocarbons etc.

There is a solubility rules according to which polar solutes dissolve in polar solvent and non polar dissolves in non polar solvents.

Conclusion:

Options (a), (c), (d) are incorrect because paint thinner and gasoline is non polar in nature.

To dissolve this kind of solute, non polar solvent is required.