Are oil and liquid ammonia miscible?

The correct answer indicates that oil and liquid ammonia are not miscible, which aligns with the fundamental principles of chemistry regarding solubility. Miscibility refers to the ability of two substances to mix and form a homogeneous solution. Oil is typically non-polar, while ammonia is polar due to the presence of a nitrogen atom bonded to hydrogen atoms, leading to a dipole moment.

In general, polar and non-polar substances do not mix well because the interactions between their molecules are different; polar molecules are attracted to each other, while non-polar molecules have different types of interactions. As a result, liquid ammonia and oil will separate into distinct layers when mixed, confirming that they do not form a homogeneous solution.

The point about ammonia being heavier than oil does not affect the miscibility itself, as density is distinct from solubility. The fact remains that the differing polarity of the two substances is the primary reason they do not mix. Other provided options that suggested conditions under which they might mix or the idea of them neutralizing each other do not reflect the actual chemical properties of these substances.