Using their structural formula identify the functional group by circling them:

(i) Dimethyl ether

(ii) Propanone

(i) Why is pure acetic acid known as glacial acetic acid ?

(ii) Give a chemical equation for the reaction between ethyl alcohol and acetic acid.

(a) Define isomerism

(b) Give the IUPAC name of the isomer C₄H₁₀ which has a branched chain.

Write equation of ethyl bromide with :

(a) aqueous NaOH

(b) alcoholic NaOH