(i) Ethanol is a highly inflammable liquid. It catches fire easily and starts burning. Ethanol burns readily in air with a blue flame to form carbon dioxide and water vapour:

A lot of heat is produced during the combustion of ethanol.
(ii) Ethanol reacts with sodium to produce sodium ethoxide and hydrogen gas:

(iii) When ethanol is treated with chromic anhydride, then its partial oxidation takes place and ethanal is formed.

Chromic anhydride oxidises ethanol to ethanal.
(iv) Alkaline KMnO4 oxidises ethanol to ethanoic acid.

(v) Ethanol reacts with ethanoic acid in presence of concentrated sulphuric acid to form a sweet smelling ester, ethyl ethanoate.
