Answer:
(a).
→ Hydroxyl group.
→ Carbon-carbon double bond. ( alkene )
→ Esters.
(c).
(I). A colourless solution : with bromine atoms on cyclo hexene.
or: A white precipitate due to bromine atoms formed on phenol.
(ii). The purple solution turns colourless due to oxidation of the cyclo hexene.
(iii).
Bubbles of a colourless gas ( hydrogen gas ) formed when sodium reacts with the hydroxyl group to form Sodium oate ions.
(iv). Am not sure about my answer.
(v).
A red dye is formed. ( and azo dye is formed due to benzenediazonium salt reacting with phenol ).
