Multiple choice

______ is the liquid that has less density than that of water.

  1. Petroleum

  2. Mercury

  3. Petrol

  4. Kerosene
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Kerosene is a hydrocarbon liquid that is less dense than water, which is why it floats on the surface. Petroleum and petrol also have lower densities than water, but kerosene is the standard answer in this context.

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