Question

the layer containing petrol is located above the water column this is because petrol is​

Answer 1

Explanation:

Therefore when we mix them both, petroleum oil form layer above water. So, in the deposits, above water there is layer containing petroleum oil and gas. This is based on the principle of " Like dissolves like" . Petroleum and gas are non polar in nature while water is a polar solvent.

hope it helps

Answer 2

Answer:

The density of gasoline ranges from 0.71–0.77 kg/L, where as that of water is 1kg/L, oil is less dense than water so it will "float" on water. Gas is less dense than both and will float to the top. higher densities having a greater volume of aromatics. Since gasoline floats on water, water cannot generally be used to extinguish a gasoline fire unless used in a fine mist. The petroleum products will separate by density.