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Water, pH and Macromolecules - Medical Science

Q1:

Which of the following will easily dissolve in a polar solvent?

A gasoline (heptanes & octanes)

B methane

C argon

D sodium chloride

ANS:D - sodium chloride

Polar solvents only discovered polar and ionic compounds, Al hydrocarbons (eg methane, Vaseline) are non-polar and only dissolved on polar and no ionic compounds.