Question

How are the following obtained:​

(a) absolute alcohol​

Answer 1

Absolute alcohol: It is a common name for the chemical compound ethanol. To qualify as "absolute," the ethyl alcohol must contain not more than one percent water. In other words, absolute alcohol is liquid alcohol that is at least $99$ percent pure alcohol by weight.​

Absolute alcohol may be obtained by distilling moist alcohol with benzene. The mixture of water and benzene distils off and anhydrous alcohol is left behind.​