The central oxygen atom in ether is sp3 hybridized.
Ether is a common name for diethyl ether. Ether is a volatile, flammable, colourless liquid with a distinctive odour. It belongs to the large group of organic compounds called ethers. It is also known by the name ethyl ether and its IUPAC name is Ethoxyethane. Diethyl ether is also referred to as dry ether. Dry ether is mainly used in the Wurtz reaction.
Its molecular structure consists of two ethyl groups linked through an oxygen atom, as in C2H5OC2H5. The central atom O in sp3 hybrid state with two lone pairs of electrons on O. Oxygen is tetrahedrally hybridized the bond angle is 1100.