Question

We can get the smell of perfume sitting several metres away

Answer 1

mostly perfumes are in gaseous form so, we know that molecules of gaseous freely moves anywhere and we can get smell of perfume from several meter away.

Answer 2

We can smell the odour of perfume even from several metres away because the content in the perfume is a gas called CFC (Chlorofluorocarbons), and as the rate of diffusion in gases is the highest , as compared to solids and liquids, the smell of perfume reaches our nose sitting several meters away.

Hope this helps!!!"