Why does our palm feel cold when we put some acetone or petrol or perfume on it?

Acetone, petrol and perfume are volatile liquids. They change into vapours easily when they come in contact with the air. In order to change from the liquid to the vapour state, acetone, petrol or perfume requires latent heat of vaporisation. These liquids absorb this latent heat of vaporisation from our palm. As a result, heat energy is lost from the palm and it feels cold.