Question

Oil floats on water. The most accurate reason for this is:

• A. oil is less dense than water
• B. oil is immiscible (does not dissolve) in water
• C. oil is both less dense and immiscible with water
• D. water is heavier than oil

Answer 1

Answer: (C)

oil is both less dense and immiscible with water

Oil always floats to the top of water because it is less dense than water. Oil and water don't mix.